UNESCO-listed, internationally recognised as one of the most biodiverse patches of forest anywhere on earth, and genuinely extraordinary to walk through with a specialist naturalist guide who knows its endemic species by sight and call. Over 60 percent of Sinharaja’s trees are endemic to Sri Lanka, and the mixed-species bird flocks that move through its canopy – a phenomenon unique to this forest, involving multiple endemic species travelling together in a coordinated foraging group – are one of the most remarkable natural phenomena available on any birdwatching itinerary in South Asia.