PADI Krabi: Courses, Dive Sites and Shops Compared
Plan PADI diving in Krabi: which dive sites suit beginners, how courses fit a short trip, what to ask a dive shop, and Ao Nang vs Railay.
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Last updated November 2026. Searching padi krabi mostly turns up PADI-affiliated dive centers in Ao Nang, with one option at Railay. PADI is a training and standards agency, not a single operator, so each shop runs its own boats, groups and schedules. Our guide helps you pick a course path, match sites to your experience and compare shops before you book. For the wider picture, start with our Krabi diving overview.
Featured image: Ilse Reijs and Jan-Noud Hutten, CC BY 2.0, via Wikimedia Commons.
PADI Krabi courses: which path fits your trip length
PADI course names are consistent worldwide, so a Krabi shop can slot you into the same ladder you would find elsewhere. The entry points are Discover Scuba Diving, Open Water Diver, Advanced Open Water and Rescue Diver. Certified divers who have been out of the water can book a Scuba Review. PADI also offers a free online introduction to scuba, and eLearning for theory before you fly. Read the current prerequisites on the PADI Open Water Diver course page. Course length and price vary by shop, so ask for a written schedule. Local sources suggest about 1 week if you want to cover most sites in the area. The table matches common situations to a path.
| Your situation | Suggested path | Trade-off |
|---|---|---|
| One free morning, never dived | Discover Scuba Diving on the Ao Nang house reef (6–8 m) | No certification card; shallow, skills-focused dive |
| Certified but out of practice | Scuba Review, then an easy site such as Koh Poda (12–15 m) | Uses part of a dive day on refreshing skills |
| About a week, want a card | Open Water Diver, with eLearning completed before travel | Theory at home; water time is still fixed by the shop |
| Open Water card, want deeper sites | Advanced Open Water, then the Ao Nang wrecks (20–25 m) | Extra course days before the wrecks open up |
| Experienced and staying longer | Rescue Diver plus day trips toward Shark Point | Longer boat days; weather can cancel them |
Dive sites by experience level
Most local sites around Ao Nang are shallow, with mild currents. Depths below are typical operator figures, and conditions shift with tide and swell. Koh Poda is 20–30 minutes by boat from Ao Nang. Sites toward Phi Phi and Shark Point take longer, roughly 45 minutes for reefs 5–10 km west. Koh Klang is a niche muck-diving option, best as a night dive with a torch. Our full Krabi dive site list covers more spots. Wreck penetration and swim-throughs call for extra training, so do not assume every site is easy.
Koh Poda is 20–30 minutes by boat from Ao Nang. Pair it with a Scuba Review if you have been out of the water a while.
| Site | Typical depth | Suits | Notes |
|---|---|---|---|
| Ao Nang house reef | 6–8 m | First dives, refreshers | Used for Discover Scuba Diving; night dives possible |
| Railay East and West | 6–10 m | Beginners, night divers | Easy dive after a day of climbing |
| Koh Poda | 12–15 m | Beginners, rusty divers | Sloping reef; turtles are frequently reported |
| Koh Pakbia | 10–14 m | Beginners, mixed groups | Good third-dive choice |
| Koh Yawasam (Chicken Island) | 14–18 m | Advanced beginners and up | Currents can pick up around the point |
| HTMS Ravi and HTMS Talibong | 20–25 m | Experienced divers | Two navy vessels scuttled as reefs in 2013 |
| Koh Yawabon swim-through | Varies | Specialist-trained divers | Long swim-through with a no-light zone and strong currents |
| Shark Point, Anemone Reef, King Cruiser | Varies | Day-trip divers | Longer boat ride; weather cancellations possible |
Choosing a PADI dive center in Krabi
No single shop suits everyone, so compare on practical points. Ao Nang has the densest cluster, and our Krabi dive shop comparison goes deeper. Aqua Vision describes itself as a PADI 5-Star IDC resort, and Sawasdee Divers is listed by PADI as a 5 Star CDC. These are the shops' own and PADI-listed claims, not endorsements from us. Aqua Vision also states a maximum of ten divers per tour and usually two or three per guide. Sawasdee Divers lists 7 PADI instructors on its PADI profile. Check any shop's status through PADI's dive center locator. Questions worth asking:
- How many divers go on each boat, and how many per guide?
- What is the instructor-to-student ratio on courses?
- Will the same instructor stay with you throughout?
- What boat type is used, and what time does it leave?
- Is hotel pickup included?
- What is the condition of rental equipment, and what does rental cover?
Ao Nang vs Railay as a base
Ao Nang is the practical base for most divers. It has the most shops, the shortest hop to local islands and plenty of lodging. Our Ao Nang diving guide covers the shore side. Railay is reached by boat and suits divers who also climb. The Railay reefs run 6–10 m, which makes a gentle late-afternoon or night dive after a day on the cliffs. See our Railay dive center guide for that option. Pick Ao Nang if you want choice, early boats and day trips toward Phi Phi. Pick Railay if climbing and a quieter evening matter more than shop variety.
Railay's 6–10 m reefs sit close to the Ao Nang house reef used for Discover Scuba, so a first-timer can base at either.
When to go: season, visibility and water temperature
High season runs roughly November to April, with January to March reported as the best window. Visibility is often about 20 m then. Low-season swell and plankton can cut it, and reef summaries give a range of 5–20 m. Water stays between 27°C and 31°C all year. Longer trips to Phi Phi or Shark Point may be cancelled in rough weather. Low season brings fewer divers but less predictable boats. Our Krabi diving season guide breaks this down by month. Our Krabi water temperature guide covers exposure suits. Sea-surface data is also available from NOAA's sea surface temperature product.
Costs: how to compare quotes
Check current baht prices directly with shops, and see our Krabi diving price guide for context. Marine park fees are set by the Department of National Parks. Ask each quote to state:
- Number of dives and whether equipment is included
- Marine park or national park fees
- Lunch and hotel transfers
- Certification and materials fees for courses
- Insurance and cancellation or reschedule terms
Mistakes to avoid
Skipping the transfer question is common. Confirm hotel pickup and the departure time before paying. Another slip is treating every site as easy. The wrecks at 20–25 m and the Koh Yawabon swim-through need more experience. Medical fitness matters too. Read guidance from Divers Alert Network on medical checks and flying after diving, rather than relying on a rule of thumb. Finally, in low season, book offshore trips only with a clear reschedule or refund policy.
Frequently Asked Questions
Where can a beginner dive in Thailand?
In Krabi, beginners usually start at the Ao Nang house reef (6–8 m), Railay (6–10 m) or Koh Poda (12–15 m). Koh Poda is 20–30 minutes by boat from Ao Nang. Ask a PADI shop which site suits your course that day.
Notes for your next dive trip
Optional updates to our Thai diving guides.
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