Duikcentrum Onderwaterwereld

Snorkeling

Excursión de snorkel para disfrutar de la vida marina desde la superficie con máscara, tubo y aletas.

UPdate Programma

Cursos de especialidad SSI

SSI Open Water Diver

The SSI Open Water Diver course at Onderwaterwereld runs in two configurations. The full course — six pool sessions and six open water dives, all done in the Netherlands — leads to a complete certification. Pool sessions take place on Sunday evenings at Sportplaza Groenendaal in Heemstede, watertijd from 18:00 to 19:00. Open water training moves to Groenendaal and Vinkeveen, both Dutch inland sites, during the outdoor season from May through September. The referral option splits the training differently: pool sessions and digital theory in Haarlem, then the open water dives at your holiday destination. Onderwaterwereld handles the SSI certification paperwork. That means you can start the theory at any point in the year, work through the pool component during the winter months, and complete the open water dives on a dive holiday when conditions suit you. Advanced courses then continue back in Haarlem. Learning to dive in the Netherlands means learning in cold water with limited visibility — conditions that are demanding compared to the tropics. The centre's position is that this makes for a more capable diver. If you can manage buoyancy and equipment in Dutch inland sites, the adjustment to warm, clear water on holiday is an easy one. Buying a complete set of dive equipment from the shop comes with the Open Water training free. The argument is straightforward: divers who learn in gear they own — mask, wetsuit, BCD, regulator — know how everything fits and functions, maintain it properly, and build experience more consistently. The shop stocks Mares, Aqualung, Scubapro, Suunto, Dragonsub, Oceanic, Sealife, and EMS across a range of configurations from lightweight travel setups to heavier wreck-diving gear.

Professional traject (Dive Guide t/m Open Water Instructeur)

The professional pathway at Onderwaterwereld runs from Dive Guide through to Open Water Instructor, with distinct roles at each step. The Dive Guide leads recreational divers underwater. The Dive Master assists instructors during pool sessions. The Assistant Instructor teaches. The Training Specialist and Open Water Instructor hold the full teaching credential within SSI. The centre's emphasis on the professional track is preparation rather than qualification. A professional is expected to arrive at the water with backup equipment, a first aid kit, and oxygen ready before the recreational group enters. That standard — treating the safety margin as the professional's personal responsibility rather than the centre's — runs through how the programme is framed. For divers who've built up significant logged experience and want to bring others into the sport, the pathway is structured and progressive. Each step builds on the previous one, and the combination of Haarlem pool sessions and Dutch open water sites at Groenendaal and Vinkeveen provides the controlled conditions needed to develop teaching and leadership skills in water that doesn't give you much margin for error.