One of the two marine national parks of Sri Lanka. The island gets its name from Blue Rock Pigeon, a native endangered bird who lives within the rocks in these islands. The islands were declared a sanctuary in 1963 for the purpose of protecting these birds. In 2003 this area was upgraded to the status of a National Park and the boundaries were extended to include coral reef around them. The national Park has one of the best remaining coral reefs with the high live coral cover in the country and is an ideal location for scuba diving and snorkeling.