Kataragama is a place frequented by adherents of all religions in Sri Lanka and this city now declared a sacred city.The annual procession held in the months of July-August is the main pageant and is as colourful as any other pageant in the country.It has, as the concluding event, the performance of fire walking by the devotees. Kavadi dancing is another attraction in the pageant. There are devotees who perform this dance to fulfil vows even on other occasions.
Early in the morning, it's very interesting to visit the local fish market. It is absolutely authentic: all natural, not a tourist spot but that's why a really local experience (provided that you can endure walking on bloody-muddy ground and the smell.
Boating in the Muthurajawela Marsh
About 15km south of Negombo lays a large tract of land set aside partly for wildlife, partly for humans and industry. The marsh is in the part set aside for wildlife; it’s mostly a huge, shallow lake with inlets and islands. It links the river and the sea, making the water brackish and the birdlife abundant. Up the river a bit are mangrove forests, home to monkeys and estuary crocodiles. You can only get around by boat.
You can take a 2-3 hour wildlife-viewing boat tour (complete with animal spotter) from the Muthurajawela Visitor Centre, located down a stretch of Dutch Canal. Their boats carry about 12 people, and have louder-than-optimal motors. Also at the centre is a tiny “museum,” and an interesting, if unfocused, video introduction to the area. I went with a guide, which may have increased the cost (Rs2000). The admission price goes to supporting the conservation efforts.
Negombo situated by the shores of a lagoon by the same name once has been a trading port for Portuguese and Dutch and is a ideal place for those who want quick access to and from the airport. Attractions in the city are the old Dutch fort gate built in 1672 now a part of the prison, the Dutch Canal which was then a supply route to the Dutch administration, old churches and fishing villagers. The 100km long canal running through the town is still being used and is an attraction for those who want to see the country from a different perspective.
There is nice big temple call Angurukaamulla in Negombo. There is a giant Buddha statue and some of very old paintings and murals. Speciality of this temple is, you can see some information of all the kings in Sri Lanka. It’sworth visit if you will go in Negombo.
St. Mary's Church
It is one of biggest Cathedral in Negombo and Sri Lanka. You must visit there. Have a look on nice architecture and some kind of paintings.