The Colombo wetlands are the very heart of the city. They provide numerous services to the city and its people including air regulation, flood mitigation, and food production. In the recent past, some of the wetland sites have been reinvented to provide the city's people an opportunity to spend more time in them. Diyatha Uyana, Beddagana Park and Diyasaru Park are all such sites. Diyatha Uyana is the most commercial site among the three with an aquarium and a food court drawing a lot of people to it. The site becomes even more vibrant during the weekends with additional vendors selling everything from plants, homemade crafts, fruits, etc. coming in. On the other hand, Beddagana and Diyasaru parks prioritize conservation and education. They are maintained with minimal anthropogenic influences and are ideal for bird watchers, nature lovers, and environmental enthusiasts in general. You can see some of Colombo's most attractive birds in these wetlands and if you're lucky even site a special mammal such as the otter.