Before You Die: Monarch Butterflies by Isabella Tree

Morelia, Mexico: No one knows why or how 35 million monarch butterflies fly all the way from the Great Lakes in Canada, down the entire length of the United States, to over-winter in one small pine forest at 12,000 feet a few hours’ drive from Mexico City - but they do. The sight - and sound - of hundreds of thousands of bright orange butterflies whirling around you is indescribably and unforgettably moving, and marred only by the terrible guilt of accidentally treading on one that’s just landed, exhausted, from its 6,000 mile journey. We celebrated the millennium here with our two young children and they still haven’t forgotten being covered head to toe in butterflies. Wear a white T-shirt - it seems to attract them the most. Isabella Tree