't Verloren Eind is a small marina situated in Westbeemster, in the polder landscape of the Beemster region of Noord-Holland. It lies in a basin off the Noord-Hollandskanaal, at what the name suggests is the far end of the Beemster — on the Knollendammervaart.

The harbor offers around 35–40 permanent berths, including a number of larger slips for vessels exceeding 15 meters. Transient berths are available on an occasional basis. Basic facilities include showers, toilets, water, and shore power.

The marina's position on access waterways makes it a practical base for reaching a wide range of destinations, including the Alkmaardermeer, Alkmaar, Purmerend, Monnickendam, and the IJsselmeer, as well as coastal routes toward Den Helder or IJmuiden and the North Sea.