HAPPY DIVERS s.r.o.

An SSI Open Water Diver card, internationally recognised, which qualifies you to dive to 18 m, rent equipment at dive centres worldwide, and join dives organised by dive bases. SSI has been issuing certifications since 1970 and the card is accepted virtually everywhere.

Usually at Czech quarries — Bořená Hora is a regular venue — or in Germany (Horka, which goes to 35 m), Croatia or Egypt. The exact location is agreed with all participants at the first session. There's also a referral option for 9,500 Kč: you do theory and pool work in Prague, then complete the open water dives at any centre anywhere in the world, paying that centre separately.

A maximum of six students per group. During all water sessions there is a qualified SSI instructor present, plus qualified assistants as needed. The centre can also arrange fully individual courses on request.

Yes. Happy Divers has a rental operation. OWD course participants get full equipment on loan for open water sessions — mask, snorkel, fins and dive computer. Graduates of the OWD get ongoing discounted rental rates and no security deposit requirement on borrowed gear.

Nitrox (enriched air) is available both as a specialty course and for fills. Air fills for standard cylinders are done at the centre while you wait — 10 Kč per litre, with a 50% discount if the cylinder has more than 100 bar residual pressure remaining.

The shop at Veletržní 31 (Monday–Friday 11:00–18:00) is an authorised dealer for Beuchat, Mares, Atomic Aquatics, Suunto, Ursuit, Hollis, Oceanic, Cressi, Xdeep and Lavacore. Any brand available on the Czech market can be ordered. They also stock the diving magazines Oceán and Potápěč Buddy.

Yes, several times a year. In 2026 the calendar includes extended weekends in Croatia (Sv. Marina) in May and September, a week in Montenegro in late September, and a Red Sea liveaboard safari in October covering SS Thistlegorm, Ras Mohammad and the Tiranské ostrovy (Tiran Islands). Past trips documented in the gallery include Palau, Borneo (Layang Layang), Mozambique, Sudan, Cuba and Mexico's cenotes.

The SSI Perfect Buoyancy specialty explicitly lists a minimum age of 10 years. For other courses, SSI standard age requirements apply — contact the centre for the specific course you have in mind.