Covering a total surface area of about 1,000 hectares when at its full capacity, bird lovers will love to spend time picking out the large variety of water bird species found in the wetlands surrounding the dam.
The Nqweba Dam, formerly known as the Van Ryneveld's Dam, was constructed in 1921 and completed in 1925. It cost in the region of £450,000. The dam wall is 350m wide and 42m high.
The dam is fed by the Sundays River and Gatsrivier and forms the Lower Sundays River, which runs around the town‘s historic centre.
It overflowed in 1974 causing devastating floods in the town of Graaff-Reinet and lower down the Sunday’s river. In 2008 it overflowed with no damage and in 2011 the dam overflowed continuously for 10 weeks after considerable rain in the catchment area. 2012 was one of the best years in the history of Graaff-Reinet with the dam overflowing for nearly 6 months.