The Sleattemer Mar, also known as the Slotermeer, is a beautiful Frisian lake nestled in the southwest corner of Friesland in the Netherlands. Situated between the three towns of Sloten, Balk, and Woudsend, this lake is a well-known destination for both water sports enthusiasts and anglers. The lake is relatively shallow across much of its expanse, with depths outside the navigable channels sometimes reaching only 1.20 meters, making it a distinctive and productive fishery with the kind of shallow, weedy habitat that supports a diverse range of coarse fish species.