Computer Diving Specialty, dive smarter with your own real-time data
More confidence underwater, better planning, and safer decisions dive after dive
A dive computer is one of the best safety tools in scuba, but only if you actually understand what it is telling you. The SSI Computer Diving Specialty teaches you how to use a dive computer properly so you can track your depth, time, ascent rate, no-decompression limits, and surface intervals with confidence, not guesswork.
You’ll learn how computer algorithms affect your dive profile, how to plan multi-level dives, what the key warnings and alarms really mean, and how to stay conservative when conditions change. This course also helps you build good habits: checking settings before the dive, staying aware of ascent rates, using safety stops correctly, and understanding why two divers can have different remaining time even on the same dive.
It’s a perfect specialty if you are starting to dive more often, doing deeper dives later on, or simply want to feel calm and in control while your computer quietly does the math in the background.
Course Facts
- Prerequisite: Open Water Diver
- Academic sessions: Online learning
- Confined/pool sessions: Optional (if needed)
- Open water dives: Optional (can be integrated into normal day-trip diving)
How it fits your trip
This specialty can be done alongside your regular dives on day trips to the Similan Islands, Koh Tachai / Koh Bon, or half-day tours to local dive sites. Instructor and certification are included in the course price.
Computer Diving Specialty Price
| Name | Info | Price |
|---|---|---|
| SSI Computer Diving Specialty | Theory + practical use during dives (added to trip price) | 4,500 ฿ |
| Dive computer rental (optional) | If you don’t have your own computer | 250 ฿ / day |
| Additional specialty (combo) | Other specialties in combination (during the same trip) | 2,500 ฿ |
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Destination
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Included
2-way Hotel TransferLiability InsuranceLife JacketsLunch & FruitsProfessional GuideTravel InsuranceWater & Soft Drinks -
Not Included
Crew TipsDiving InsuranceGuide TipsMask, Snorkel & FinsNational Park FeesOther Rental Equipment
Make Your Own Memories
Price List for Rental & Fees
Below you’ll find our standard rental rates and the most common National Park fees. Availability can be limited on busy days.Rental equipment prices (per day)
| Item | Price |
|---|---|
| BCD | 200 ฿ |
| Regulator | 200 ฿ |
| Shorty wetsuit (3 mm) | 100 ฿ |
| Dive computer | 250 ฿ |
| Dive torch | 200 ฿ |
| Compass | 150 ฿ |
Tip: Rental availability is limited on busy days — reserve early if you need specific items.
National Park Fees
| Fee | Adults | Children |
|---|---|---|
| National Park entry fee | 500 ฿ | 250 ฿ |
| National Park diving fee | 200 ฿ | 200 ฿ |
Optional Add-ons
- Nitrox (12L): 200 ฿
- Private guide: 2000 ฿
- Underwater photos/video: We don't have a dedicated photographer on board, but your guide usually has a camera and can take pictures and videos of you for ~ 1000 – 1500 ฿ per diver
Tipping
Tipping is not required, but it’s always appreciated if you enjoyed your day. If you’d like a simple guideline:- Boat crew (day trips): ~100–300 ฿ per guest
- Dive guide: ~500–1000 ฿ per diver
If service was exceptional: tip more — but always optional.
Similan National Park – Booking Requirements
- For National Park ticket booking, we require: first name, family name, nationality, date of birth, and passport number.
- For divers we also need: certification level, number of logged dives, date of last dive, and proof of certification.
- All visitors must carry a copy or photo of their passport during the trip (for possible ranger checks).
Similan National Park Rules
- Season: The Similan Islands are closed every year from 16 May to 14 October and open from 15 October to 15 May.
- Keep your park receipt: After paying the National Park entrance fee, please keep the receipt with you for inspection.
- No drones: Drone flights are strictly prohibited.
- No single-use plastics: Many Thai National Parks prohibit single-use plastic items (and foam containers). Please avoid bringing disposable plastic/foam packaging into the park.
- Reef-safe sunscreen only: Thai National Parks have announced bans on certain chemical sunscreens that are harmful to coral. Please use reef-safe sunscreen or protective clothing instead.
- Respect wildlife: Do not touch, chase, or disturb marine life. Never stand on coral or the seabed, and never take shells or coral as souvenirs.
- Follow park staff & boat crew instructions: Rules can change depending on conservation measures and conditions. Always follow the guide briefing and any ranger instructions.
Important note about courses
- Beginner courses are not allowed in Similan National Park (Try Dives / Open Water courses). These are available at Surin Islands and local dive sites.
New Thailand Diving & Snorkeling Rules
Thailand introduced stricter nationwide standards for diving and snorkeling activities (effective 22 April 2025) to protect coral reefs and improve safety.- Supervision required: Every trip must be accompanied by a certified dive supervisor or assistant.
- Life jackets for snorkeling near coral: Life vests must be provided and worn when snorkeling near coral reefs (unless the tourist holds a recognized freediving certificate).
- Mandatory briefing: Guests must receive a briefing on laws, safety, and responsible marine practices before activities.
- Group ratios: Limits apply to how many guests one supervisor can oversee (different limits for deep diving vs snorkeling/freediving, and for training sessions).
- Camera rules: Underwater photography is restricted unless the diver is qualified (e.g., Advanced certification or 40 logged dives) and can show proof if requested.
- Reef distance: Divers must stay at least 2 metres above coral heads, and fin control must be demonstrated before approaching coral areas.
Booking Deadlines
- Bookings: latest 20:00 the day before the trip.
- Cancellations: latest 12:00 the day before the trip.
Liability Notice Participation Requirements