55 Breathtaking natural wonders of the world
Multiple countries

Former travel editor of BBC Wildlife Magazine James Fair round-ups the earth’s greatest natural wonders, which will literally take your breath away.
Bucket list experience:
Monarch Butterfly Biosphere Reserve, Michoacan, Mexico
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.
The migration starts in September and October when they journey south from across the USA and southern Canada, to escape the North American winter.
The migration north to south, and then back again in spring, is continuous. No single butterfly completes the full circuit in their short lifetime – it’s estimated four generations are required.
The butterflies congregate in the Monarch Butterfly Biosphere Reserve from January to March each year.
Round-ups that include this experience
Multiple countries
Former travel editor of BBC Wildlife Magazine James Fair round-ups the earth’s greatest natural wonders, which will literally take your breath away.