Attidiya is a beautiful marshland located around 9km towards the south west of the city. The wet land is rich with natural biodiversity and is a resting place for many types of birds.
The vegetation of this wetland is dominated by sedge and grasses including Rhyuchospora rubra and Panicum repens. Around 43 species of waterfowls live in the area. Most common among them are Indian Shag (Phalaerocorox fuscicollis), the Blue breasted Banded Rail ( Rallus striatus) etc. If you are an enthusiastic bird watcher or an eco friend, then it is worthwhile to spend sometimes in the Attidiya bird sanctuary during one of your leisurely evenings during your stay in Colombo.