The Bolgoda lake situated in Moratuwa is the largest natural lake of Sri Lanka. It is a tributary of the Kalu Ganga which originates at Adams Peak and is a popular resort for swimming, angling and boating. Blogoda lake spreads, twisting from Ratmalana via Moratuwa and Panadura till it meets the sea at Wadduwa and Moratuwa via the Moratu ganga.
The two-storey colonnaded building on Prince Street, Pettah (Colombo 11) which houses this museum was constructed during the Dutch occupation of Colombo (1656 - 1796) and was the formal residence of the Governor of Dutch Ceylon Thomas van Rhee (1634 - 1701) during his term of office from 1692 to 1697. The building has been used for many different purposes over the years. It was a teacher-training college and an institute for the instruction of clergymen between 1696 and 1796. It was also used as a hospital. It became a barracks in the second half of the 1800s and 1900 it was used as a police training school, set up by the British. In 1932 it was converted to the Pettah Post Office. In 1971 following heavy monsoon rains one of the exterior walls collapsed and the building was abandoned. Following protests by the Royal Asiatic Society and the Dutch Burgher Union against plans to demolish the building, in 1973 a committee was established with representatives from the Ceylon Tourist Board, the Department of Archaeology, the Netherlands Alumni Association of Lanka and the National Archives, to restore the building and establish a museum covering the Dutch colonial period
The Hamilton Canal was in use during the Dutch era with the purpose of connecting the capital Colombo with Puttlam. The canal, which is 14.5km long runs parallel to the West coast of Sri Lank through Negambo town. During the British era the canal was extended and was used to drain the salt water out of Muthurajawela wetland
