SSI Deep Diving Specialty in Koh Phi Phi
The SSI Deep Specialty in Phi Phi reaches 40 metres across four dives with a theory class. Open Water divers pay 8,900 THB; Advanced divers pay 7,900 THB.
About the programme
The SSI Deep Diving Specialty at DPM Diving in Koh Phi Phi certifies divers to dive to depths between 18 and 40 metres — the recreational maximum. The course combines theory with open-water dives covering deep dive planning, gas consumption calculations, narcosis awareness and dive computer use at depth. Two course lengths are available depending on current certification: Open Water Divers (otherwise limited to 18 metres) complete the full two-day version with four dives at 8,900 THB; Advanced Divers (already certified to 30 metres) complete a one-day version with two dives at 7,900 THB.
Both routes result in the same SSI Deep Diving Specialty certification, which is internationally recognised and valid for life. All dives include full dive equipment, a professional SSI instructor, dive insurance and lunch. A National Marine Park Fee applies for diving in Phi Phi: 600 THB on the first day and 200 THB on each additional day (paid separately in cash).
A standard SSI medical questionnaire is completed before water entry. Participants with pre-existing cardiac or respiratory conditions should seek medical advice before diving beyond 30 metres, as the risk profile changes with depth.
Why take the Deep Diving Specialty in Koh Phi Phi
Phi Phi has genuine deep terrain rather than a sandy bottom you reach and leave. The King Cruiser sits with its hull down near thirty metres, so the full wreck profile is deep-dive territory, and the walls at Bida Nok and Bida Nai keep dropping past the recreational limit with pelagics passing in the blue.
On calm days the boat can reach the southern pinnacles of Hin Daeng and Hin Muang, the deepest and richest dives in the region and the ones where manta rays and whale sharks turn up in the plankton-heavy months from June to October. Water is 27-30 °C top to bottom, so no thermocline complicates the planning.
Dive sites are chosen on the day according to weather and sea conditions.
100% online booking
Booked with one WhatsApp message
No forms on the website and nothing to print. Everything happens on your phone, from your first message to your last dive.
- Message us on WhatsApp Tell us the course, the destination and your dates, and we reply with availability and prices.
- Confirm your booking You receive your booking code (for example, DPM-2PB4F) and a payment link to confirm your place.
- Register in minutes With that link you fill in the medical form and sign it online, which takes about 4 minutes.
- Follow your course From then on, your course diary shows what's done and what's left: booking, registration, dives, final payment and certification.
All set! Your code: DPM-2PB4F
📝 Complete your registration (medical form + signature):
https://r.dpmdiving.com/en/DPM-2PB4F
🤿 Save this link — it's your day-by-day course journal:
https://r.dpmdiving.com/en/mi/DPM-2PB4F
💳 If you pay by bank transfer, write this code as the reference and send us the receipt:
DPM-PP-1015-37PNXD
See you at the front desk!
Included with your course
Your whole course, organised on your phone
From your first WhatsApp message to your certification, the whole process is 100% online. Our Mareaviva app takes you through your course day by day, before and after every dive.
Course tracker Every day of your course is laid out in the app, so you always know what's planned and what comes next. You know who your instructor is, and they follow your progress in the app from start to finish.
Dive briefing Each dive comes with its briefing: the site map and the dive plan, with time, entry and exit points, maximum depth and expected dive time.
Dive plan Start time, entry and exit points, maximum depth, expected dive time and the safety stop, drawn as a dive profile.
Species logbook See which marine life to look out for on each dive, then tick off the species you actually spot.
Photo pack When you finish, you get a pack of underwater photos from the best sites around your centre: not pictures of your own dive, but a keepsake to take home.
Surprise prize When you rate your instructor you always get a surprise gift: it could be a discount on another course or even a free course, chosen at random.
All of this is included in the 7900 THB. Send us a message to get started: we reply at any hour.
Book Deep Specialty on WhatsAppFrequently asked questions
What is the maximum depth of the SSI Deep Specialty course in Phi Phi?
The SSI Deep Diving Specialty certifies divers to 40 metres — the recreational deep limit. The course includes four dives with theory on gas consumption, dive planning and computer use at depth. Open Water-certified divers take the two-day version (8,900 THB); Advanced-certified divers complete it in one day (7,900 THB).
