Nilaveli is a coastal resort town and suburb of the Trincomalee District, Sri Lanka located 16 km northwest of the city of Trincomalee. A historically popular Tamil village and tourist destination of the district alongside the nearby Uppuveli, the numbers of visitors declined following the 2004 Indian Ocean tsunami and Sri Lankan Civil War, but have risen again since 2010. Pigeon Island National Park, one of the two marine national parks of the region is situated 1 km off the coast of Nilaveli, its many species of vegetation, coral and reef fish contributing to Nilaveli's rich biodiversity.
Trincomalee is a port city on the east coast of Sri Lanka. The Bay of Trincomalee's harbour is renowned for its large size and security; unlike every other in the Indian Sea, it is accessible to all types of craft in all weathers. The beaches are used for surfing, scuba diving, fishing and whale watching. The city also has the largest Dutch fort in Sri Lanka. It is home to major Sri Lankan naval bases and a Sri Lankan Air Force base.
Most of the Tamils and Sinhalese believe that this place is sacred to them and they are the indigenous people of the area. Trincomalee and its environs have both Hindu and Buddhist sites of historical importance. These sites are sacred to the Hindus and Buddhists.
The Eastern Province is one of the 9 provinces of Sri Lanka. The provinces have existed since the 19th century but they didn't have any legal status until 1987 when the 13th Amendment to the 1978 Constitution of Sri Lanka established provincial councils. Between 1988 and 2006 the province was temporarily merged with the Northern Province to form the North-East Province. The capital of the province is Trincomalee. The Eastern province's population was 1,460,939 in 2007. The province is the most diverse in Sri Lanka, both ethnically and religiously.
Eastern province has an area of 9,996 square kilometers (3,859.5 sq mi).The province is surrounded by the Northern Province to the north, the Bay of Bengal to the east, the Southern Province to the south, and the Uva, Central and North Central provinces to the west. The province's coast is dominated by lagoons, the largest being Batticaloa lagoon, Kokkilai lagoon, Upaar Lagoon and Ullackalie Lagoon.