RWV Nautilus is a marina and boat ramp located in Roermond, in the Maasplassen region of Limburg, Netherlands.

It sits within the water sports complex at Steelhaven and La Bonne Aventure, directly on the Maas, approximately seven minutes on foot from Roermond's city center.

The broader Steelhaven facility offers two trailer slipways, making it a practical launch point for trailered boats. The tourist harbour accommodates 35 visitor berths alongside 850 permanent moorings. Jetty depth is noted at SP-3. 00 m (NAP +13. 85 m).