Nautisch Kwartier De Evenaar is a marina and nautical district situated near the Loosdrechtse Plassen in the Netherlands. The harbor accommodates up to 80 boats, with all berths equipped with long-side jetties.

The port is noted for its easy water access and wave-free conditions, keeping moored vessels calm and stable.

By water, the Loosdrechtse Plassen are approximately five minutes away, while the River Vecht can be reached in around ten minutes, making De Evenaar a convenient base for exploring the surrounding waterways.

The facility also offers garage space for summer and annual boat storage, available as an optional extra beyond standard berth arrangements.