Sinharaja is a lowland tropical rain-forest of global importance showing certain affinities with rain-forest of south and north-east India, Indonesia and Malaysia. As a result of long isolation in the shelter of the central mountains of Sri Lanka, as well as being separated by ocean from other regional rain-forest, Sinharaja displays a high level of endemic in the composition of both its flora and fauna. As such it warrants special protections. Indeed, the bulk of Sri Lanka’s remarkable bio-diversity is concentrated in rain-forest such as Sinharaja, along with those of the peak wilderness and the knuckles range. 22,000 acres in extent, the Sinharaja rain-forest amount to only 10 percent of the remaining forest to only 10 percent of the remaining forest cover of the wet zone of Sri Lanka.