How Many Dives for Advanced Open Water?

Short answer: with PADI, there is no minimum number of logged dives to start the Advanced Open Water course — you can enroll straight after Open Water, and the course itself consists of 5 adventure dives. Other agencies count differently, and the numbers matter more as you climb the ladder. Here is how it breaks down.

PADI: 5 adventure dives, no waiting period

The PADI Advanced Open Water Diver course is built around 5 adventure dives. Two are required — Deep and Underwater Navigation — and you choose the remaining three from options like Peak Performance Buoyancy, Night, Wreck, or Fish Identification. Each adventure dive is the first dive of the corresponding specialty course.

There is no logged-dive prerequisite: an Open Water diver with 4 dives can start AOW immediately. Whether you should is a fair question — many instructors suggest a handful of easy fun dives first, so you are working on skills rather than still wrestling your buoyancy. But the certification card does not require it.

SSI and other agencies count differently

Agency names overlap confusingly, so check the fine print:

  • SSI Advanced Adventurer mirrors PADI’s AOW: 5 adventure dives from different specialties, no logged-dive minimum.
  • SSI Advanced Open Water Diver is a different thing entirely — a recognition rating awarded after completing 4 specialty programs and logging 24 dives.
  • RAID, NAUI, CMAS and others each have their own structures and prerequisites.

If a dive center or course lists “Advanced” as a requirement, ask which agency and which rating they mean. And always confirm current prerequisites with the agency or your instructor — standards are theirs to set and they do evolve.

Where logged dives really start to matter

The dive count requirements stack up after AOW:

  • PADI Rescue Diver requires AOW (or equivalent) plus EFR training; from there,
  • PADI Divemaster candidates need 40 logged dives to start training and 60 to certify.
  • Deep specialties and technical courses typically require both a certification level and a verifiable number of logged dives.

“Verifiable” is the key word. Instructors accept paper logbooks with signatures and digital logs alike, but they want entries that look real: dates, sites, depths, buddies, signatures where you trained. A logbook with gaps, or no logbook at all, can mean an awkward conversation or an assessment dive before a course. If your logging habit has lapsed, my guide on how to log a scuba dive will restart it in two minutes per dive.

Depth limits are part of the deal

Advanced Open Water extends your maximum training depth — with PADI, from 18 m to 30 m. That limit exists because gas planning, narcosis, and no-decompression margins all tighten with depth. Respect the limits of your training, plan every dive within them, and follow your dive computer. No article — including this one — is a substitute for agency training on depth and decompression.

Keep the proof ready with Tortuba

I built Tortuba so your dive count is never in question. Every dive gets its number automatically, with date, site, depth, duration, air, and buddies in structured fields — and your instructor or teammates can sign the log in the app, stamp photo included. When a course application asks “how many dives?”, the answer is on the first screen, not scattered across three notebooks and a drawer.

It helps after the course too. AOW opens up deeper sites and new kinds of diving, and Tortuba’s guide to 10,000 species means what you meet down there gets named and remembered — see how divers connect species to sites in my animals index and locations. Still choosing where those next dives happen? Start with my guide to the best dive sites for beginners.