WSV Poseidon is a watersports association and marina located on the Maas in Kessel, a historic village situated between Venlo and Roermond.

The club serves as an access point to the river and welcomes visiting boaters to its association harbour set amid natural surroundings. The marina is known for its hospitable reception and well-maintained facilities.

Kessel itself is a charming Maas village, notable for the historic Kasteel de Keverberg, and the club provides guests with information about the surrounding area and villages along the river.