Parque Nacional Yasuní

Park in Parque Nacional Yasuní
Juan Carlos Vindas / Getty Images
Juan Carlos Vindas / Getty Images

Yasuní is Ecuador’s biggest mainland park at 9820 sq km, boasting all manner of terrain from marshes to rivers to tropical rainforest. A Unesco Biosphere Reserve, it has more than 600 bird species (including harpy eagles) as well as jaguars, pumas and tapirs.