Step into the “Kingdom of the Lion,” Sri Lanka’s last viable area of primary tropical rainforest. This UNESCO World Heritage site is a dense, emerald treasure trove where over 60% of the trees and 95% of the birds are found nowhere else on earth. Exploring Sinharaja on foot allows you to hear the forest breathe from the calls of the Sri Lanka Blue Magpie to the rustle of endemic lizards in the undergrowth.