Zeeverkenners Centrum "Oosterland" is a scouting campsite situated on the southern shore of the Brielse Meer, west of the municipality of Brielle, between the Robbenkreek and the Oosterlandse Haven.

It is one of two camping grounds managed by the Stichting Zeeverkennerscentrum Brielse Meer, a foundation established in 1967 to serve water-activity scouting groups in the region.

The site features multiple camping fields with a shared campfire area and its own small harbour. Flat-bottomed scout boats (vletten) may be available for hire through arrangement with local groups, though the shallow depth prevents larger vessels from mooring.

Member groups use the terrain for activities including weekend and summer camps, competitions, and regular group meetings.

The Brielse Meer itself is an enclosed former sea inlet, making it a sheltered and popular recreational waterway accessible by boat via the lock at Spijkenisse.