Het Vennemeer is the southeasternmost small lake of the Kagerplassen, with an open waterway connection to the Zweiland. Larger vessels can reach it easily via the Zijp from the Kaagsociëteit on the Kaag.

The lake sits in the municipality of Kaag en Braassem in Zuid-Holland.

Watersportvereniging (WSV) Vennemeer, which has been active for over a century and based at this lake since the 1930s, operates a compact but well-equipped marina here accommodating around 145 boats.

A harbourmaster is on duty, and visiting boaters are welcome. The clubhouse includes a brasserie and terrace with views across the lake and surrounding polder.