Phuket is one of the easiest places in the world to learn to dive, and one of the most rewarding places to keep going. Warm water, gentle house reefs for your first lessons and the world-class pinnacles of the Similan and Surin marine parks within a day's reach make it a natural classroom. We teach the full NDL (National Dive League) ladder in English or Russian — from a no-experience try dive to your first professional rating — and we can roll any course straight into a liveaboard so your training dives happen on the same reefs the experienced divers are raving about.
What is NDL and how does it compare?
NDL stands for National Dive League — an international recreational training system whose certifications are recognised by dive centres worldwide. Each NDL level maps cleanly onto the qualifications most travellers already know: NDL Diver is the equivalent of an Open Water certificate, and NDL Universal Diver lines up with an Advanced rating. If you already hold a card from another agency, that experience carries over — we simply continue from your real level rather than starting you over.
Theory is taught in plain language by an instructor who speaks your tongue, either in Russian or in English, so nothing important gets lost in translation. You confirm each new skill in calm, shallow water before taking it to the open sea, which is exactly why beginners feel comfortable so quickly here.
The course ladder, level by level
Discover Diving (intro) is your first breath underwater — half a day, one or two dives, no certificate or prior experience required. You stay to a shallow 6–8 metres with a personal instructor at your side the whole time, on the sheltered reefs of Racha or Coral Island where the water is calm and the visibility forgiving.
NDL Diver is the core entry certificate (Open Water equivalent): three to four days of theory plus around six dives, taking you to a maximum of 18 metres. Graduate and you can dive independently with a buddy anywhere in the world.
NDL Universal Diver is the advanced step (Advanced equivalent): two to three days and five or more dives extending your limit to 30 metres, with deep, navigation, night and current skills. This is the level that genuinely unlocks the Andaman's signature sites such as Koh Bon, Koh Tachai and Richelieu Rock.
NDL Rescue Diver, often paired with a first-aid and oxygen module, is the most useful course in diving — three days of self-rescue, buddy assistance and emergency response that make you the calmest, most capable person on the dive deck. From there the professional path begins with NDL Master Diver / Divemaster: a two-week-plus internship on our own boats, guiding groups and assisting on courses down to 40 metres on real Similan departures.
Nitrox: the upgrade worth taking before a liveaboard
The Nitrox (Enriched Air, EANx) specialty is a single day — theory plus two dives — and it changes how a multi-day trip feels: longer bottom times, shorter surface intervals and noticeably less fatigue after four dives a day. For blends up to EANx 40% it is the single most worthwhile add-on before any liveaboard.
It also saves money on board: most of our liveaboards include free Nitrox for certified divers, so the small one-off cost of the course pays for itself over a week of fills.
Where you'll train and dive
Beginner lessons run on Phuket's nearby reefs — Racha Yai and Coral Island — where shallow, sheltered water and good visibility make those first skills painless. The wreck of the Boonsung, in just 13–20 metres off the north of the island, is a favourite for newly certified and improving divers thanks to its dense fish life.
Once you are certified, the marine parks open up. The Similan and Surin national parks deliver granite swim-throughs and reef at sites like Anita's Reef and West of Eden for newer divers, and dramatic deep pinnacles — Koh Bon, Koh Tachai, Elephant Head Rock — for those with an advanced rating. Richelieu Rock, the region's most celebrated site, is best in February through April and is the prime spot for whale sharks and manta rays. Further north, the remote Mergui Archipelago (Myanmar) adds wild walls such as Black Rock and Western Rocky for experienced divers.
Season, fees and how to plan
The Similan and Surin national parks are open to diving from roughly 15 October to 15 May; they close during the southwest monsoon (mid-May to mid-October), when sea conditions make the outer islands unworkable. Year-round diving still continues on Phuket's local reefs and nearby Phi Phi, so course training never has to wait for the season.
Two fees are worth budgeting for. Thai national-park entry is charged per diver per day inside the Similan/Surin parks and is collected on top of the trip. Trips into the Mergui Archipelago require Myanmar paperwork and a per-person government dive permit fee — a real, fixed surcharge that we arrange for you in advance. Exact course prices depend on dates, group size and whether you train shore-based or on a liveaboard, so we quote them on request — message us on WhatsApp and we'll build a plan around your level and the boats with space.
Featured vessels for this trip
Frequently asked questions
Do I need any experience to start?
None at all. Discover Diving is a half-day intro to a shallow 6–8 metres with a personal instructor — no certificate or prior experience needed. If you want a card you can use worldwide, the NDL Diver course (Open Water equivalent) takes three to four days.
What level do I need to dive Richelieu Rock?
Richelieu Rock is an intermediate-to-advanced site with depths from about 5 to 35 metres and frequent current, so an advanced rating (NDL Universal Diver or equivalent) and a bit of logged experience are strongly recommended. It is the region's top spot for whale sharks and manta rays, best from February to April.
Is the Nitrox course worth it?
For multi-day diving, yes. Enriched air (EANx up to 40%) gives longer bottom times and less fatigue, and most of our liveaboards include free Nitrox for certified divers — so the one-day course usually pays for itself over a trip.
When can I do a Similan liveaboard course?
The Similan and Surin national parks are open from roughly 15 October to 15 May. Outside that window the parks close for the monsoon, but you can still train and dive on Phuket's local reefs and around Phi Phi year-round.
What does it cost?
Course prices depend on your dates, group size and whether you train shore-based or on a liveaboard, so we quote them on request. As market context, a Phuket Open Water course typically runs in the region of 12,000–18,000 THB and an Advanced course around 10,000–15,000 THB; message us on WhatsApp for a firm quote and current liveaboard availability.
Are there extra fees for the marine parks or Myanmar?
Yes. Thai national-park entry is charged per diver per day in the Similan/Surin parks. Trips to the Mergui Archipelago also require Myanmar paperwork and a per-person government dive permit fee, which we arrange in advance.