North Holland offers a distinctive mix of freshwater lake diving and saltwater wreck exploration. The Vinkeveense Plassen system hosts several artificial reef structures and shallow wrecks, making it a practical ground for beginners and training dives. Deeper wreck sites such as Vinca Gorthon and Hondsbosch suit intermediate divers comfortable with boat access and greater depth. Marine life splits clearly between environments: Perch, Pike, Carp and Freshwater Shrimp inhabit the lakes, while Temperate Bass, Cod, Sea Anemone, Sea Star and Mullet are observed at the saltwater sites. Conditions are cool year-round, warming noticeably through summer.
Monthly water temperature across North Holland's sites, from satellite sea-surface data corrected for depth. The band shows the site-to-site spread.
Water temperatures are at their coldest in late winter and rise gradually through spring into a warmer summer peak, making late spring through early autumn the most comfortable period to dive. Summer months offer the best combination of warmth and visibility across both the freshwater lakes and the deeper saltwater wreck sites. Exposure and currents vary between the sheltered lake sites and the more open boat-access wrecks, so conditions should be checked site by site.
Water temperature around North Holland ranges from about 7°C in February to 19°C in August, based on satellite sea-temperature data for its dive sites.
5 more sites to explore
In the warm season (about 19°C) a 5mm suit is comfortable in North Holland; in the coldest months (about 7°C) step up to a drysuit.
Fin maps 10 sites in North Holland (10 scuba diving sites and 1 snorkelling spots, with some suited to both).
The region supports a broad spread of species across its two environments. In the freshwater lakes you are likely to encounter Perch, Pike, Pike Perch, Carp and Freshwater Shrimp. At the saltwater wreck sites, Temperate Bass is very commonly observed, alongside Cod, Mullet, Sea Anemone, Sea Star and occasional Crab.
Both access types are available in North Holland. The freshwater lake sites in the Vinkeveense Plassen system are shore-entry and straightforward to reach independently. The deeper saltwater wreck sites, including Vinca Gorthon and Hondsbosch, require boat access, so you will need to arrange a charter or dive with a local operator.
The freshwater lake sites are shallow, calm and geared towards training and beginner exploration, with artificial reef structures and small wrecks sitting in very manageable depths. The saltwater wreck sites are significantly deeper, require boat access and carry an intermediate skill rating, offering a different character with cold-water marine species and more substantial wreck structures to explore.
