Workumer Jachthaven is a well-established marina situated on De Horsa near the town of Workum in Friesland, occupying a strategic position between the open water of the IJsselmeer on one side and the Friese Meren on the other.

This makes it a natural access point for a wide range of waterways, including routes via the Klifrak into the Frisian lakes and via the Trekvaart along the Elfstedenroute toward Bolsward.

The marina offers more than 200 moorings and serves as a popular base for water sports enthusiasts exploring the region's lakes, canals, and open water. Facilities include modern sanitary provisions, a laundromat, and Wi-Fi throughout the harbor.

Indoor and outdoor winter storage and yacht maintenance services are also available. The site is easily reached by road or public transport, with a train station approximately 500 meters away.