Helenawerf is one of the marina operators at La Bonne Aventure, the water sports centre situated directly on the Maas in Roermond, in the heart of the Maasplassen region of Midden-Limburg. The site lies just a seven-minute walk from Roermond's city centre.

The broader harbour complex here serves as a tourist harbour with 35 visitor berths and around 850 permanent berths, along with two slipways for trailer launching. Jetty depth is noted at SP -3. 00 m (NAP +13. 85 m).

Following a municipal decision on the redevelopment of the Roerdelta area, the municipality of Roermond designated Helenawerf and watersportvereniging Nautilus as the two recognised operators for the restructured marina, which is set to be reduced to approximately 550 berths as part of the wider Roerdelta area development.