Watersportvereniging De Bommeer is a member-run marina and watersports club situated on the Vlaardingervaart in the Broekpolder nature area of Vlaardingen, Zuid-Holland.

Founded in 1936, the club takes its name from a small lake located west of the natural area De Vlietlanden. From the harbor, boats with a standing mast can access the vlieten and the Foppenplas directly.

Facilities include moorings with electrical distribution boxes, central drinking water points, a slipway for small boats, and trailer storage on site.

The club also hosts a youth sailing school for children aged 6 to 14, operating since 1990 with a fleet of Optimist dinghies.

The surrounding waterway is characterized by restricted speeds, limited air draft, and shallow depths, making it suited to smaller vessels. The Vlaardingervaart itself permits quiet electric boating for craft up to 850 kg and nine persons.

The club is located at Broekkade 5, Vlaardingen.