How deep can I dive after getting my Open Water certification?

Open Water certified divers are cleared to dive to 18 metres with a buddy. An Advanced Open Water course extends this to 30 metres, and the PADI/SSI Deep Diver specialty allows dives to 40 metres.

What if I am nervous about the confined water sessions?

This is entirely normal. A good instructor will progress at your pace. The skills are taught incrementally and all confined-water training happens in shallow, controlled conditions. Communicate your concerns to your instructor before the session begins.

What to Expect During Training - Scuba Diving Certification Guide | Diveity

The standard Open Water certification course is divided into three components: academic theory, confined water (pool) training, and open water dives. Together they typically take 3–5 days depending on your instructor and schedule.

Academic Theory

Theory covers dive physics (pressure, buoyancy, nitrogen), physiology (decompression sickness, nitrogen narcosis), equipment, dive planning, and emergency procedures. Most agencies offer this online so you can complete it before you arrive at the dive shop, saving time on the water.

Confined Water Training

You will practice core skills in a swimming pool or shallow, calm water with your instructor. Skills include mask clearing, regulator recovery, buoyancy control, fin pivots, and controlled emergency ascents. PADI requires five confined-water sessions; SSI and NAUI requirements are similar.

Open Water Dives

The final stage is four open-water dives — two on each of two separate days — where you demonstrate your skills in a real diving environment. Maximum depth for Open Water divers is 18 metres, though most training dives occur between 10–14 metres.

What You Will Receive

After successfully completing the course, your instructor will issue you a certification card (physical or digital). Most agencies also provide a diver log for recording your dives. You are now cleared to dive independently with a buddy worldwide.