Best dive shops in Koh Tao
10 shops scored on six published criteria. No shop can pay to move up. Top of the list right now: New Heaven Dive School with 69.7 of 100.
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Conservation-focused dive school in Chalok Baan Kao running marine biology programs alongside standard PADI courses.
- Verified reviews 21/30 Google 4.7 from 480 reviews (adjusted 4.69)
- Safety & quality signals 22/25 max 4 per instructor · 30 yrs operating · multi-agency · nitrox on site
- Price transparency & value 12/15 Open Water at destination median
- Offering breadth 10/10 PADI/SSI · 5 languages · 5 offering types · tech / liveaboard / nitrox
- Sustainability 5/10 Conservation activity mentioned, not verified
- Editorial visit 0/10 Not yet visited or confirmed
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Established 1989, multi-location operation across Sairee and Mae Haad with a wide course range and on-site accommodation.
- Verified reviews 15/30 Google 4.5 from 1,850 reviews (adjusted 4.51)
- Safety & quality signals 25/25 max 4 per instructor · 37 yrs operating · multi-agency · instructor-level centre · nitrox on site
- Price transparency & value 12/15 Open Water at destination median
- Offering breadth 10/10 PADI/SSI/TDI · 7 languages · 5 offering types · tech / liveaboard / nitrox
- Sustainability 5/10 Conservation activity mentioned, not verified
- Editorial visit 0/10 Not yet visited or confirmed
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Boutique Mae Haad shop with an eco-conservation focus, small groups, and a strong reputation for teaching quality.
- Verified reviews 23/30 Google 4.8 from 720 reviews (adjusted 4.78)
- Safety & quality signals 22/25 max 4 per instructor · 15 yrs operating · multi-agency · nitrox on site
- Price transparency & value 8/15 Open Water 7% above destination median
- Offering breadth 8/10 PADI/SSI · 5 languages · tech / liveaboard / nitrox
- Sustainability 5/10 Conservation activity mentioned, not verified
- Editorial visit 0/10 Not yet visited or confirmed
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One of the world's highest-volume PADI 5★ IDC centres, founded 1992, with on-site resort and full course range.
- Verified reviews 15/30 Google 4.5 from 2,400 reviews (adjusted 4.51)
- Safety & quality signals 25/25 max 4 per instructor · 34 yrs operating · multi-agency · instructor-level centre · nitrox on site
- Price transparency & value 12/15 Open Water at destination median
- Offering breadth 10/10 PADI/SSI · 9 languages · 5 offering types · tech / liveaboard / nitrox
- Sustainability 0/10 No sustainability programme reported
- Editorial visit 0/10 Not yet visited or confirmed
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Thai family-owned PADI 5★ shop founded 2014 in Mae Haad, with multilingual instructors including Swedish.
- Verified reviews 26/30 Google 4.9 from 620 reviews (adjusted 4.86)
- Safety & quality signals 17/25 max 4 per instructor · 12 yrs operating · nitrox on site
- Price transparency & value 8/15 Open Water 7% above destination median
- Offering breadth 6/10 PADI · 6 languages · tech / liveaboard / nitrox
- Sustainability 5/10 Conservation activity mentioned, not verified
- Editorial visit 0/10 Not yet visited or confirmed
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Boutique PADI 5★ shop in Mae Haad with a maximum of 4 students per instructor across all courses.
- Verified reviews 23/30 Google 4.8 from 580 reviews (adjusted 4.78)
- Safety & quality signals 19/25 max 4 per instructor · 24 yrs operating · nitrox on site
- Price transparency & value 8/15 Open Water 10% above destination median
- Offering breadth 6/10 PADI · 4 languages · tech / liveaboard / nitrox
- Sustainability 5/10 Conservation activity mentioned, not verified
- Editorial visit 0/10 Not yet visited or confirmed
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PADI 5★ Career Development Centre founded 1995. High-volume Mae Haad operation with on-site pool, accommodation and full course pipeline.
- Verified reviews 18/30 Google 4.6 from 2,200 reviews (adjusted 4.60)
- Safety & quality signals 25/25 max 4 per instructor · 31 yrs operating · multi-agency · instructor-level centre · nitrox on site
- Price transparency & value 8/15 Open Water 3% above destination median
- Offering breadth 10/10 PADI/SSI · 8 languages · 5 offering types · tech / liveaboard / nitrox
- Sustainability 0/10 No sustainability programme reported
- Editorial visit 0/10 Not yet visited or confirmed
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Long-running mid-range Sairee operation with budget-friendly pricing, on-site bungalows, and a relaxed backpacker feel.
- Verified reviews 15/30 Google 4.5 from 980 reviews (adjusted 4.51)
- Safety & quality signals 22/25 max 4 per instructor · 29 yrs operating · multi-agency · nitrox on site
- Price transparency & value 12/15 Open Water 6% below destination median
- Offering breadth 10/10 PADI/SSI · 4 languages · 5 offering types · tech / liveaboard / nitrox
- Sustainability 0/10 No sustainability programme reported
- Editorial visit 0/10 Not yet visited or confirmed
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Newer Sairee shop (2009) with a younger instructor team, active social media, and a backpacker-leaning crowd.
- Verified reviews 21/30 Google 4.7 from 1,100 reviews (adjusted 4.70)
- Safety & quality signals 19/25 max 4 per instructor · 17 yrs operating · nitrox on site
- Price transparency & value 12/15 Open Water 6% below destination median
- Offering breadth 6/10 PADI · 5 languages · tech / liveaboard / nitrox
- Sustainability 0/10 No sustainability programme reported
- Editorial visit 0/10 Not yet visited or confirmed
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Long-established Chalok Baan Kao resort (1994) with on-site accommodation, pool, and a quieter south-island base.
- Verified reviews 13/30 Google 4.4 from 850 reviews (adjusted 4.43)
- Safety & quality signals 22/25 max 4 per instructor · 32 yrs operating · multi-agency · nitrox on site
- Price transparency & value 12/15 Open Water 5% below destination median
- Offering breadth 10/10 PADI/SSI/TDI/SDI · 5 languages · 5 offering types · tech / liveaboard / nitrox
- Sustainability 0/10 No sustainability programme reported
- Editorial visit 0/10 Not yet visited or confirmed
How we rank
Every shop gets a score out of 100 from six criteria. The weights and the data behind each score are shown on every entry, and the full table can be downloaded as CSV. Scores are recalculated whenever the data changes; this page was last updated on 2 May 2026.
| Criterion | Weight | What we measure |
|---|---|---|
| Verified reviews | 30 | Google rating and review count, shrunk toward the destination average so a 4.9 with 30 reviews does not beat a 4.8 with 1,500. |
| Safety & quality signals | 25 | Maximum students per instructor (the single biggest safety lever on a course), years in operation, multi-agency status, instructor-level training centre, nitrox on site. |
| Price transparency & value | 15 | Published Open Water price (or fun-dive price where courses are not the main product) against the destination median. Cheapest is not always best; transparency is rewarded, hidden fees are not. |
| Offering breadth | 10 | Agencies offered, languages spoken, range of products, and whether technical, liveaboard or nitrox diving is available. |
| Sustainability | 10 | Green Fins membership or a documented conservation programme scores full; a mention without evidence scores half. |
| Editorial visit | 10 | Full marks when our team has visited the shop and verified boats, gear room and classroom in person. Half when the shop has confirmed its data with us. |
Rules
- Paid listings and partnerships never affect the score, and are labelled where they appear.
- Missing data scores zero. It is the shop's data to provide; we do not guess.
- A shop can dispute any data point. Corrections are applied and dated.
- Review data is pulled from Google and dated; we do not collect our own reviews yet.
Cite as: "Best dive shops in Koh Tao 2026", topdiveshops.com, updated 2026-05-02. Scores CSV: best-dive-shops.csv.