Watersportvereniging Yerseke is a water sports association and marina complex situated on the Oosterschelde in the village of Yerseke, Zeeland.

The association caters to sailors, motorboaters, rowers, and recreational water users, combining sporting activity with maritime tradition.

The facility encompasses three adjacent harbors: the Prins Willem-Alexanderhaven and the Prinses Beatrixhaven serve as the yacht harbors, while the Koningin Julianahaven functions as the fishing harbor.

As of 2025, both yacht harbors share a single entrance via the Beatrixhaven channel. The Prins Willem-Alexanderhaven holds approximately 185 berths; the Beatrixhaven accommodates around 100 yachts and also provides a dedicated transient jetty.

Visiting skippers should contact the harbor master via VHF channel 74.

Yerseke is reachable by water via several routes, including through the Krammersluizen and the Brabantse Vaarwater, via the Engelsche Vaarwater, or from the North Sea coast along the Oosterschelde.