Horton Plains sits at over 2,100 metres altitude and holds the only significant montane grassland ecosystem in Sri Lanka, a plateau of cloud forest and patana grassland that ends abruptly at World’s End, a sheer 870-metre escarpment with views extending to the southern coast on clear mornings. The endemic wildlife here – purple-faced langurs, sambar deer and the Sri Lankan whistling thrush- exists nowhere lower on the island.