Haarlemmermeerse Bos is an artificial reef located in the Grevelingen, Netherlands. Divers access the site from the shore, with the main area situated approximately 50 metres out. The site features depths ranging from 5 to 20 metres, with an average depth of 15 metres. Conditions vary, with visibility typically between 1 and 10 metres. An air circulation system operates from May 1st to October 1st to manage water temperature and cyanobacteria levels. Divers should be aware of potential hazards including boat traffic, entanglement risks, strong currents, and low visibility. Facilities at the site include parking and a cafe. Night diving is permitted.

Beachhouse is a shore-entry reef and drift site located in Grevelingen, Netherlands. Divers can explore the reef structure at depths ranging from 6 to 13 metres, with an average depth of 8 metres. The site is situated 50 metres from the shore. Visibility typically fluctuates between 5 and 10 metres. Water temperatures vary significantly throughout the year, ranging from 7C to 20C, necessitating appropriate thermal protection. Due to active boat traffic in the area, the use of a surface marker buoy is essential for all divers. The site supports a variety of temperate marine life and invertebrates typical of the region.

Toolenburgse Plas is a freshwater dive site in the Netherlands featuring a variety of underwater structures, including wrecks, cars, training platforms, and an old cannon. Divers can access the site from the shore, with the main features located approximately 50 metres out. The site is suitable for beginners, with depths ranging from 3 to 25 metres and an average depth of 7 metres. Visibility typically fluctuates between 2 and 5 metres. The site offers facilities including parking, toilets, showers, a rinse station, a cafe, and a dive shop. Night diving is permitted, and the habitat supports various temperate freshwater fish and invertebrates.

Dcnv is a shore-entry artificial reef located in the Grevelingen, Netherlands. This site functions as a drift dive, where strong currents carry divers along the reef structure. The wreck lies at depths between 25 and 72 metres, requiring strict depth management and careful gas planning. Visibility is variable, ranging from 1 to 10 metres. Due to the strong currents and potential for entanglement, this site is suited for intermediate divers. Water temperatures fluctuate between 7C and 20C throughout the year, making thermal protection essential. Divers must remain vigilant regarding boat traffic and use a surface marker buoy. On-site facilities include changing rooms, showers, a rinse station, and air fills.

Sloterplas Ganzeneiland is a freshwater inland dive site in the Netherlands featuring an artificial reef structure. This location offers a sheltered, current-free environment suitable for beginner divers. The site is accessed via a shore entry and is located 200 metres from the shore. Divers can explore depths ranging from 10 to 30 metres, with an average depth of 20 metres. Visibility is variable, typically between 1 and 6 metres, and is often better during cooler months when algae growth is reduced. Water temperatures fluctuate between 6 and 20 degrees Celsius, requiring appropriate thermal protection such as a wetsuit or drysuit throughout the year.

Nieuwe Meer is a freshwater shore-entry site in Zeeland, Netherlands, featuring an artificial reef and a wreck. Suitable for beginners, the site offers depths ranging from 1 to 18 metres. Visibility typically fluctuates between 3 and 8 metres, requiring careful buoyancy control. The site is accessible year-round and supports night diving. Divers should be aware of potential hazards including boat traffic, entanglement risks, and the overhead environment presented by the wreck. Water temperatures vary significantly by season, ranging from 6 to 20 degrees Celsius, necessitating appropriate thermal protection for longer dives.

Noordzeekanaal Kruithaven is a freshwater site in the Vinkeveense Plassen offering both wreck and artificial reef diving. The site features depths ranging from 5 to 50 metres, with an average depth of 15 metres. Divers should be aware of a thermocline located at approximately 9 metres. Conditions include mild currents and visibility typically between 4 and 10 metres. The site is accessible via both shore and boat, and night diving is permitted. Facilities available at the location include parking, toilets, showers, changing rooms, air fills, and a dive shop. Due to the depth and potential for boat traffic, this site is suited for intermediate divers.

Sloterplas Oost is a freshwater lake dive site located in the Vinkeveense Plassen. The site features both natural and artificial reef structures, providing varied topography for beginners. Divers can explore depths ranging from 10 to 40 metres, with a thermocline typically reported between 5 and 9 metres. Visibility is variable, ranging from 1 to 6 metres, making it a practical location for low-visibility training. The site is accessible via shore entry and is suitable for night diving. Due to boat traffic, the use of a surface marker buoy is essential during all ascents. Water temperatures fluctuate between 6 and 20 degrees Celsius throughout the year.