Negombo Lagoon is one of the richest waters in Sri Lanka. It is 12 km from south to north and 3.75 km at its most comprehensive end. Boat tours along the tranquil waters of the Negombo Lagoon are exceedingly famous among tourists. With magnificent views of the mangrove marshes along the way, viewers can observe the significant heterogeneity of the water birds that encourage the lagoon, which incorporates herons, cormorants, egrets, gulls, terns, and different shorebirds. One can also watch several local fishermen and their families join in fishing in the lagoon and learn about the exciting fishing culture in Negombo.