Watersportvereniging "Alvo" is a recreational boating club located at Emmalaan 102, situated on the Bergsche Achterplas.

Founded in 1979, the association grew out of the commercial marina originally operated by Piet Voets and later his wife Alie Voets, after whom the club is named.

The marina accommodates up to 175 vessels, ranging from rowing boats to pleasure yachts with a maximum length of 10 meters and a draft of approximately 0. 90 meters.

Members are required to contribute work shifts toward marina maintenance, and during winter months all vessels can be hauled ashore for necessary upkeep. Alvo has a clubhouse with showers and toilets, and organizes social activities during the off-season.

The club is also a member of the Vereniging Bergseplassen, an umbrella organization grouping several watersport associations active on the Bergse Plassen.