Sri Lanka is shaped like a giant teardrop falling from the southern tip of the vast Indian subcontinent. It is separated from India by the 50km (31mi) wide Palk Strait, although there is a series of stepping-stone coral islets known as Adam's Bridge which almost form a land bridge between the two countries. The island is just 350km (217mi) long and only 180km (112mi) wide at its widest, and is about the same size as Ireland, West Virginia or Tasmania.

The southern half of the island is dominated by beautiful and rugged hill country. The entire northern half comprises a large plain extending from the edge of the hill country to the Jaffna peninsula. The highest mountain is the 2524m (1565mi) Mt Pidurutalagala near Nuwara Eliya, and the longest river is the Mahaweli which courses from the centre and empties into the Indian Ocean at Trincomalee. The best beaches are on the south-western, southern and south-eastern coasts.

Ebony, teak, silkwood and spectacular orchids are found in the dense south-western tropical rainforests. Hardy grasslands, rhododendrons and stunted forests predominate in the cool, damp highlands, and shrubs and grasslands survive in arid zones in the north. Animal life is profuse and includes the ubiquitous elephant, as well as leopards, deer, monkeys, sloth bears, wild boar, cobras, crocodiles, dugong and turtles. The island is an important seasonal home to migrating birds, including flamingoes, who flock to the lagoons, wetlands and bird sanctuaries for respite from the northern winter. The best time to see birds is between January and April.