Oostwatering is a marina and waterfront access point on the southwestern shore of Veerse Meer, situated along Polredijk just northwest of the historic town of Veere in Zeeland.

The Veerse Meer is a large, non-tidal lake separated from the sea by the delta barrage, making it a popular and sheltered destination for recreational boating.

The site is home to Watersportvereniging Arne's harbour, which accommodates around 300 berths and caters to a range of small craft including catamarans, lasers, and dinghies.

A campsite occupies the western side of the harbour, and facilities for young sailors are available on site. Oostwatering Steiger also serves as a recognized winter dive site.

The entry point lies beside a long jetty, where a gently sloping sandy bottom gives way to mussel beds, anemones, peat blocks, and a variety of marine life including nudibranchs, shrimp, flatfish, and pipefish.

Summer diving is not feasible due to heavy boat traffic. A large parking area is within easy walking distance of the water entry point.