Negombo Lagoon is a large lagoon in south-west Sri Lanka with several small rivers and canals, with the Indian Ocean towards the north. The water body is full of numerous varieties of fish, crabs and lobsters that make it an excellent location for fishers. Tourists enjoy the relaxing boating ride on the lagoon and escape from the hustle and bustle of the city.

Negombo Lagoon is known for its rich and flourishing biodiversity which spans over an area of about 35 square kilometres although it is only a few meters in depth. It has a wide variety of flora, fauna and mangrove forest that accounts for its ecotourism and conservation efforts. Negombo is a tourist hotspot with an extensive network of hotels, safe transport and certified guides which help in carefully exploring the area.

There is a boating ride which starts in the Dutch Canal and leads its way into the lagoon. Private boats are also present well equipped with life jackets and safety equipment and follow strict safety procedures to ensure a smooth tour for the guests. The boat ride also offers light refreshments throughout the journey.

A densely populated region also surrounds the area with sprawling rice paddy fields, coconut plantations, grasslands, fishing and agricultural grounds. Many hotels and resorts around the lagoon serve delicious and fresh seafood for the guests. The abundant plant life in Negombo attracts several species of birds. Many water birds like cormorants, herons, seagulls, egrets, etc. can be easily spotted near the lagoon and along the boat ride. The area also serves as migration ground for several bird species. Other fauna includes monkeys, painted bats, otters and the rusty-spotted cat.

The Negombo Lagoon is also one of the few places where one can find real mangrove plants. The aquatic life is abundant with fish, prawns, crabs, molluscs, amphibians and sea reptiles. About 17 of these species are endemic to Sri Lanka. Tourists are requested to wear comfortable shoes, sunglasses and hats. Cameras are allowed during the boating tour. The visitors are also advised to bargain the prices when it comes to choosing a guide. Large luggage and bags are not allowed.

The boating tour is not suitable for pregnant women and people with back problems. An adult must accompany all children. Smoking is strictly prohibited.

During your stay in Negombo, be wary of any pick-pocketers and people that will try to sell little trinkets and souvenirs to you.