55 Breathtaking natural wonders of the world

Earth’s largest and most spectacular tropical wilderness – over 5 million sq km of rainforest – is an overwhelming landscape of huge waterfalls tumbling off table-top mountains, vast, coloured rivers, and fragrant cloud forests. All filled with astonishing, endemic wildlife.

Nine countries share the Amazon Basin, though the majority, 60% is in Brazil. It’s also home to over 350 ethnic groups – a dwindling few of whom have never had contact with the outside world.

Immerse yourself with a stay in a rainforest lodge, or book on to a once-in-a-lifetime cruise.

The coldest place on Earth, with temperatures touching -94 C, this icy landmass bigger than Europe bewilders for its incredible scenery and sheer remoteness.

Mountains, some 8,000 feet high, their peaks and ridges softened by snow, tower over vast frozen plateaus. Massive, blue-white icebergs in dramatic shapes pepper the freezing seas.

The wildlife here is as prolific as it is captivating – penguins bustle about their business, seals bask on the rocks and whales feed in plankton-rich waters.

Hidden inside the unassuming entrance to Bracken Cave are millions upon millions of bats – up to 15 million Mexican free-tailed bats, in fact, making it one of the largest concentrations of any mammals on Earth.

Every evening during the breeding season, they emerge in seemingly infinite swarms, and you can watch this gargantuan exodus nightly between May and September.

On the unspoilt islet of Bisevo, a narrow tunnel leads into a vast chamber, illuminated an amazing shade of luminescent blue – the so-called Modra Spilja (Blue Cave).

The unique blue glow inside this cave is caused by a partial submarine hole in the cave entrance, which lets in direct sunlight at certain times of day. From inside the cave, the light seems to emanate from the water itself, which casts an aquamarine glow on the walls, while objects in the water appear to be silver. It’s an unearthly, magical sight.

It’s one of many treasures to be found in the beautiful Dalmatian Islands.

These twin Mayan Riviera cenotes are spectacular: marking the entrance to one of the longest underground rivers in the world – filled with water as clear as ocean air, passing through submerged caverns covered with spectacular cave formations and teeming with strange cave fish, crustaceans and bats.

You don’t need to be a cave diver to appreciate them, though. Some of the most beautiful caverns are accessible to snorkellers. PADI open-water divers can go further and designated cave divers can explore the deeper caverns. Any diving requires advanced booking.

Every spring Japan goes into sakura (cherry blossom) frenzy. The subject of everything from traditional haiku verse and woodblock prints to apps that track its flowering, sakura is deeply woven into Japanese culture.

Sakura are the blossoms of ornamental cherry trees – although found across Asia, Japan has historically been home to especially large varieties which were subsequently cultivated into today’s impressive displays. Reflecting both its aesthetic and its importance to Japanese culture, the cherry blossom is the national flower of Japan. See them in both Tokyo and Kyoto.

Two kilometres deep, surrounded by steaming volcanoes, and with condors soaring on the thermals, Colca Canyon is one of Peru’s great natural wonders. It’s twice the depth of the Grand Canyon, far wilder and has wonderful views at every turn.

Day-trippers come to peer over the rim and spot condors. Trekkers hike the rugged trails, stopping to soak in the hot springs or swim in the icy Colca River, which ribbons the canyon floor. And farmers still till the soil on the ancient valley terraces cut long before the Spanish arrived.

At 180 million years old, this remarkable biodiversity hotspot is home to many ancient and primitive plant forms found nowhere else.

Its wildlife is extraordinarily diverse. Among the critters that call the Daintree home are 430 species of bird, 90% of Australia’s bat and butterfly species, and over 12,000 different insects. The scenery is equally impressive – a landscape of rugged peaks and gorges, spectacular waterfalls, white sandy beaches, mangrove swamps and extensive vistas of pristine tropical forest. See it from chic Port Douglas.

Dean’s Blue Hole off Long Island, Bahamas, is a stunning, submarine sinkhole – a cave that imploded long ago to form a deep and perfectly round depression in the reef.

Plunging 202m into the inky blue darkness, this is the world’s deepest known blue hole, and one of the world’s best dive sites too.

Europe’s biggest sand pile, the Dune du Pilat (or du Pyla) towers near the mouth of Arcachon Bay, 30 minutes from Bordeaux. Standing 107m high, stretching 6km in length and with a volume of 20 million cubic metres of sand, it’s an extraordinary sight.

The view from the top is breathtaking, too – on a clear day you can see all the way to the Pyrenees. After, descend to Pyla-sur-Mer’s golden-sand beach and cool off with a dip in the Atlantic Ocean. 

The Westman Islands, off the south coast of Iceland, were formed from volcanic eruptions, and there are many extraordinary rock formations.

None more so than the Elephant Rock. the overhang that forms the eye, the grey basalt rock resembling wrinkled skin and the upper section of the trunk all create the image of an uncannily life-like pachyderm.

Made up of hexagonal columns of volcanic basalt that look as if they could have been moulded in a foundry, Fingal’s Cave was formed (about 60 million years ago) from the same lava flow as the Giant’s Causeway across the water in Northern Ireland.

The cathedral-like cave rises nearly 70m over the sea, and the sound of waves crashing inside inspired the German composer Mendelssohn to write his Hebrides Overture.

A visit to the Galapagos is a life-changing experience. You’ll see wildlife that exists nowhere else on earth, from prehistoric-looking iguanas to Galapagos penguins, blue-footed boobies to giant tortoises.

Marine life abounds in the clear, deep water and graceful sea turtles will glide right past you. Penguins may pop up as you’re snorkelling.

Extraordinary wildlife encounters take place against a backdrop of ancient volcanoes, jagged lava rocks, cacti and beaches ranging from powdery white to glittering olive.

Giant redwood (aka giant sequoia) trees are Earth’s largest trees, growing to an astonishing average height of 50-85m tall, with 6m to 8m-wide trunks.

They only grow on the western slopes of the Sierra Nevada in California, and the Sequoia National Park is home to the largest of them; the ‘Giant Forest‘ within the Park boasts five of the world’s tallest trees. The star of the show, towering above the rest, is General Sherman, the Earth’s largest tree at an incredible 83m tall and 11m wide.

The Muir Wood National Monument just outside of San Francisco is another great – and accessible – place to see them.

Tumbling towards the sea on Northern Ireland’s northern-most section of coast – an hour from Belfast – this collection of around 40,000 naturally hexagonal basalt columns is an astonishing rock formation with deep roots in both Irish mythology and ancient geology.

Theories differ on how the neatly-shaped columns and stones came to look this way – some believe they were placed by the giant Finn McCool, on his way to battle in Scotland; others concede the formation was more likely due to volcanic activity…

This magnificent 443km-long canyon widens to 29km in places and plunges more than 1.6km down. Yet it’s still not the deepest canyon – both Colca Canyon in Peru and Kali Gandaki Gorge in Nepal are more than twice as deep.

But the drama of the landscape and the multi-coloured geology of this extraordinary, 2-billion-year-old geological phenomenon is unsurpassed.

This vast coral reef system, comprising almost 3,000 individual reefs and 900 islands, stretches for more than 2,500km off Australia’s eastern coast – it’s so vast it can be seen from outer space.

It supports an astonishingly rich biodiversity, including 30 species of whale and dolphin, 1,500 species of fish, 125 species of shark and ray, and six species of sea turtle. Visit it from chic Port Douglas.

Desert landscapes have an ethereal beauty all their own, and Namibia’s striking Sossusvlei region is surely up there as the greatest, most dramatic of them all thanks to its towering sand dunes.

These vast, sculpted mega-dunes, up to 380m in height, are among the tallest in the world and are distinctive for their high iron content and deep pink-orange hue, which glows in the evening light.

This remarkable natural phenomenon sees an annual circular trek of around two million creatures – wildebeest, Thomson’s gazelle and zebra – from the southern Serengeti to the wooded grasslands of Kenya’s Masai Mara, and back again.

The numbers are terrific, as are the snorting and ‘gnu’ sounds that permeate the air, and the predators that follow this moving feast – from lions and great crocodiles to scavenging hyenas and vultures. It’s possibly the greatest wildlife spectacle on Earth.

These remarkable falls, straddling the border of Brazil and Argentina, stretch for nearly 3km and empty 46 million litres of water over an 80m drop every second.

Fringed by lush rainforest and often framed by rainbows rising from the mist, they are majestic – whether flowing in a single curtain – when the river is full or dropping over some 275 separate falls when water levels are low.

This series of interconnected, cathedral-like limestone caverns at Jeita form one of the most beautiful cave systems in the world, spanning 9km within the Nahr al-Kalb valley.

The upper grotto is explored on foot via a manmade walkway; it’s home to the world’s largest known stalactite, an 8.2m behemoth that dangles precariously above the cave floor. The lower grotto can only be visited by boat as it channels an underground river. It’s especially breathtaking, as if you were sailing into a cathedral built by Mother Nature herself.

An unobtrusive, ordinary-looking lake, buried deep in the Tarzan-esque junglescape of Palau’s Rock Islands, is home to stingless golden jellyfish – millions of them – that migrate every day across the lake and back again, following the path of the sun.

It’s thought the lake was formed around 12,000 years ago, when rising sea levels filled the lake, before receding. The stranded jellyfish, lacking natural predators, were then able to profilerate and evolve to the lake’s unique conditions.

The 100m-deep Kings Canyon gorge epitomises the raw desert beauty of Central Australia. A dramatic sandstone rock formation formed more than 400 million years ago, it also has a long indigenous history, stretching back some 20,000 years.

Located in the protected Watarrka National Park, it is also home to more than 600 species of native wildlife. Visit it from Uluru.

Komodo Island is famous for one reason – the monstrous 3m-long, 70kg Komodo dragons, the world’s largest living lizards.

With their long, deeply forked tongues and toxic bite, and a sprightly top running speed of 20km/h, these are dragons are every bit as menacing as the mythical beasts, capable of eating 80 percent of their body weight in one sitting.

The world’s largest freshwater lake by volume, Lake Baikal is also the deepest (max depth 1.6km) and the oldest (25-30 million years). On any reasonable assessment it’s immense – more than 30,000sq km, covering as large an area as Belgium, and holding 22% of the world’s surface freshwater.

Water visibility and oxygen levels are exceptional, even at depths, making it a haven for wildlife. Indeed, it’s famed for its rich biodiversity and endemic wildlife, including the planet’s only freshwater seal.

Straddling the borders of Peru and Bolivia, Lake Titicaca is South America’s largest lake by water volume. According to Andean lore, the lake was venerated as the birthplace of the Sun God; located at a staggering 3,830m above sea level, it’s not hard to see why it would inspire such beliefs – and the sunsets are glorious.

The lake was also the cradle of the Incas and the ancient Tiwanaku Empire: archaeological sites litter its shores. Today, the waters of the lake are dotted with artificial floating islands made of reeds by the enigmatic Uros people, using pre-Inca methods.

These extraordinary tunnel-like caves form when walls of cooled lava develop around the molten flows that melt deep into the surrounding bedrock; when the molten lava flows peter out, ‘tubes’ up to 15m wide and 40 miles long are left behind.

Geothermal Iceland has some of the most accessible to explore.

This beautiful, 22km long fjord – one of New Zealand’s most accessible – is hallmarked by beautiful upland scenery, crowned by the Mitre Peak. It’s an awe-inspiring landscape of snow-capped mountains, dense forests and spectacular waterfalls.

See it by pleasure cruise, jetboat, historic steamboat, kayak or helicopter. Better yet, hike the 4-day, world-renowned Milford Track around it, through pristine, fern-filled rainforest.

Between January and March each year, an estimated 60 million monarch butterflies overwinter in the Monarch Butterfly Biosphere Reserve, making it one of the biggest congregations of a single species anywhere in the world.

The entire population squeezes into less than 3 hectares. They cluster on the trees in numbers so dense, the blaze of their wings turns the dark green foliage of the forest fir orange.

Long revered as a holy mountain by Nepalis and Tibetans, the lure of the world’s highest peak (8,848m) remains undiminished. Set in grandiose Himalayan scenery, and the ultimate climb for any mountaineer, there is no place on Earth that is more iconic and foreboding.

A daring few attempt the summit; most settle for reaching Everest Base Camp, one of the world’s great trekking achievements.

The world’s largest free-standing mountain (5,895m) is also one of its most iconic natural sights – a picture-book peak rising from the primordial plains of Tanzania and topped by a conical hat of snow.

The mountain’s relatively even elevations make it one of the greatest non-technical mountain climbs.

You hear the Falls long before you see them: the roaring cascade of water plummeting down a 50m gorge at a rate of millions of litres per second. The world’s second-largest – but arguably most famous – waterfall is jaw-dropping in its scale and intensity.

They were formed around 12,000 years ago, at the end of the Ice Age, when large torrents of water were suddenly released from the melting ice. The water plunged over the edge of the Niagara Escarpment, draining into the Niagara River.

Norway’s immense, wedge-shaped gorges were carved out of the landscape by glaciers during the last Ice Age. Rugged, wild and decorated with ribbon-like waterfalls and emerald green meadows ablaze with wildflowers, they’re one of nature’s finest achievements.

See them on a cruise, by helicopter or even by kayak.

The truly beautiful Okavango Delta is one of the world’s great natural phenomena, fed by the mighty Okavango River whose waters form a vast inland delta before evaporating.

This unique habitat supports a wide range of endangered birds and iconic African wildlife: elephant, giraffe, lion, leopard and cheetah. It’s home to some of the densest populations of African wild dogs on the continent.

Yellowstone’s cone geyser is the world’s most famous – and most reliable. Old Faithful gets its name from the regularity of its eruptions. Since the year 2000, the geyser has erupted at least once every two hours, sending a plume of boiling water shooting 50m into the air.

Eruptions are caused by hot molten magma heating water below ground, which becomes trapped as steam in underground chambers. Eventually, the pressure of the steam becomes too much, and boom, it explodes upwards, taking cooler water nearer the surface with it.

This ancient hilltop spa centre is home to extraordinary scallop-shaped, cotton-white travertine formations that dazzle the eye with their shiny white brilliance.

The terraces form when warm natural springs of water, containing high concentrations of dissolved calcium bicarbonate, cascade over the edge of the cliff. As the water cools, calcium forms and deposits harden creating an unusual series of terraced shelves and ridges – and between them, natural spa baths.

The world-famous volcanic town of Rotorua, on New Zealand’s North Island, is a hellish paradise of mud pools, hot springs and geysers spouting scalding water into the air. And the Pohotu Geyser is its star attraction.

The largest geyser in the southern hemisphere, it reliably ‘erupts’ up to twenty times per day, sending hissing (and rather smelly) jets of sulphurous steam and dirt up to 30m (100 feet) into the air.

This, the world’s longest subterranean river, is a flooded cave system that stretches for 24km under the St. Paul Mountain Range on the island of Palawan; visitors can access the caverns above the water line by boat from the sea.

It’s a biodiversity hotspot too, with a rare full mountain-to-sea ecosystem. Giant spiders, crabs and snakes inhabit the cave, though in the near darkness all you are likely to see are bats. Highlights also include a 20 million-year-old fossil of a manatee.

This exceptional cave in the southern province of Guangxi is one of China’s most remarkable natural wonders, home to dramatic rock formations, stalagmites and stalactites.

It markets itself as ‘Nature’s Art Palace’ – the whole scene is (artificially) illuminated by coloured lighting, creating a riot of colours and shapes.

Over 9.2 million sq km (larger than either the US or China) of nothing but vast, shifting sand dunes, the world’s largest hot desert covers most of Northern Africa. Average daily temperatures can reach 47°C – only Death Valley can rival it. Mute and empty, beneath flawless blue skies, it’s like nowhere else on earth.

But don’t let that put you off. Safaris into the desert are an evocative, unearthly and surreal experience, and the chance to experience one of the world’s most extreme and beautiful landscapes. You can reach it on fascinating multi-day tours from Marrakech.

Bolivia’s giant 10,000 sq km salt pan is a landscape of stark and dazzling beauty. It was formed when several prehistoric lakes dried up around forty thousand years ago, leaving a salt crust several metres thick.

It’s remarkably flat – the elevation varies by less than a metre – and inhospitable to most life forms, though it is famously home to vast flocks of flamingos that live on the fiery-red waters of Laguna Colorada.

Every year between February and August, gigantic sardine shoals – up to 7km long, 1.5km wide and 30m deep – riding the Aghulas current northwards along South Africa’s eastern coast.

They’re followed by almost every denizen of the deep: Bryde’s and humpback whales, sailfish, blacktip sharks and thousands of dolphins amongst others, that gorge themselves in a vast feeding frenzy unlike anything else witnessed on Earth.

Cocos Island, in the deep Pacific, some 550km off the Costa Rican coast, is the site of one of the great underwater spectacles – the mass schooling of hundreds of hammerhead sharks.

Each year, from June through October, they gather in uncountable numbers, attracted by high concentrations of prey. Cocos Island sits at a convergence of swirling, nutrient-rich currents, attracting vast schools of fish on which the hammerheads feed.

The limestone karst landscape of southwest Slovenia is said to have more than 10,000 registered caves, but the best ones to visit are either those at Postojnska or Skocjan.

Skocjan was carved out by the action of the Reka River, and consists of a series of subterranean chambers 6km long that include those called ‘Paradise’, ‘The Great Hall’ and ‘The Murmuring and Silent’ Caves. The latter is home to giant stalagmites called the ‘Giants’ and ‘The Pipe Organ’.

Sitting off the coast of Yemen in the Arabian Sea, Socotra Island is to the Indian Ocean what the Galapagos are to the Pacific – a natural, open-air laboratory where more than 700 species of plants and animals have evolved that are found nowhere else on Earth.

The umbrella-shaped dragon’s blood trees – so called because of their red sap – are the most distinctive endemics, but there are a host of birds and reptiles that are also unique.

Europe’s most active volcano, this tipi-shaped mountain is the place to head for Nature’s fireworks – guaranteed.

Stromboli has been spewing molten rock for 2,000 years and the hike up the 1,000m cone is a relative breeze, given the spectacle that awaits at the summit.

Cape Town’s 300-million-year-old, iconic flat-topped mountain is 1,085m (3,559ft) above sea level at its highest point, Maclear’s Beacon. The top plateau is home to rare fynbos vegetation.

Aside from being flat, its name actually derives from a thin layer of wind-blown cloud that forms over the flat summit before dropping dramatically over the edge – like a tablecloth.

At 423m below sea level, the Dead Sea marks the Earth’s lowest elevation on land. The sea is a natural collection point for salts and minerals, with salinity up to ten times that of ocean water – so dense that swimmers float on its surface, while animals and plants struggle to flourish (hence the name).

The sea’s mineral-laden waters have been revered for their healing properties for thousands of years; they ease discomfort from arthritis, soothe fiery skin conditions such as acne and eczema, heal allergies and boost circulation so helping with detoxing.

This 600,000-hectare park, dubbed the ‘river of grass’, is the US’s largest subtropical wilderness – a vast landscape of swamp and tropical forest.

It’s a paradise for its notorious alligators; it’s also home to rare Florida panthers (actually pumas) and more than 360 bird species. Wander one of the boardwalked trails, or take a thrilling ride on an iconic airboat.

The world’s greatest light display, Aurora Borealis, is caused by shifts of magnetic energy in the ionosphere. The vibrant, otherworldly lights that play across the night sky can be seen in both polar regions – the phenomenon is called Aurora Australis or the ‘Southern Lights’ in the south.

The viewing is best in the northern hemisphere within the ‘Aurora Belt’, between the Earth’s latitude parallels of 66° and 69°, where the phenomenon appears with the most intense light and greatest colour variations. See our round-up of where, when & how to see them.

Rising up from the silent desert floor like a gargantuan monolith, ochre-hued Uluru is one of the world’s most bewitching sights – more so, as its colour and appearance constantly change depending on the season and time of day.

Formed more than 600 million years ago, and reaching a height of 348 metres, it overlooks wild and desolate desert landscapes, home for millennia to the Aboriginal people. The area is steeped in their legends and traditions; combined with the scenery, Uluru has an intense, unforgettable atmosphere. The thing has presence.

Straddling the border of Zambia & Zimbabwe, the Victoria Falls waterfall is the world’s largest sheet of falling water – an incredible spectacle that sees the entire 1.7km span of the great Zambezi River tumble off a vertical ridge, sending clouds of mist into the surrounding forest.

First ‘discovered’ by David Livingstone in 1855, it’s one of the largest waterfalls on the planet at a whopping 108m high. One of many great bucket list experiences at Victoria Falls.

This prevailing limestone cavern system, just south of Auckland, is famous for one thing – glowworms. Millions of them. They attach themselves to the cave ceiling, dangling on sticky spider-like threads to capture any passing critters.

To attract prey, they produce bright blue-green bioluminescence that shines in an otherwise inky blackness. The mesmerising effect is a glittering sky of coloured stars.

The incredible landscape in China’s Zhangjiajie Mountains, inspiration for the Hollywood blockbuster movie Avatar, sees strikingly tall sandstone pillars rise up through the fog, creating an appearance of rocky outcrops floating above the valley floor – hence it’s more familiar name of the ‘Floating Mountains’. The highest pillar, Doupeng Mountain, soars up 1,890m.

You can ride the eye-watering Bailong Elevator from peak to valley floor, or (dare to) cross the Zhangjiajie Glass Bridge, a glass sky bridge spanning a 300m-deep canyon.