Deko Marina is a full-service marina located on the southern shore of Lelystad, in the province of Flevoland, situated directly on the Markermeer with open views across the IJsselmeer.

The marina offers around 400 berths accommodating vessels up to 20 metres in length, making it one of the larger recreational harbours in the region.

Berths are on stable, wide pontoons equipped with power and water connections, and the marina supports shore power for hybrid and electric boats. Facilities include fuel, showers, restrooms, laundry, a boat ramp, Wi-Fi, and waste disposal.

Overnight accommodation is also available on site through harbour lodges. The marina is generally considered one of the more economically priced options in Lelystad, particularly for mid-sized and larger vessels.