Best list · 23 sites · Thailand

Best dive sites in Thailand

Ranked by Divegrade score: marine life per dive, visibility, reef quality and verified reviews, with low-review sites shrunk toward the regional average.

The ranking

Top 23 in Thailand, best first.

  1. White-eyed Moray near Chumpon PinnaclePhoto: (c) portioid, some rights reserved (CC BY), via iNaturalist, CC BY

    1. Chumpon Pinnacle

    Koh Tao
    8.3
    Advanced Open Water12-45 mAbove your levelLevel not known: check before you book

    Marine life 9.1 · Visibility 9.4 · Reef 5.1 · Reviews 7.4 (est.) -> 8.3

  2. Moon wrasse, seen at HTMS Sattakut (photo taken elsewhere)Seen here: Moon wrassePhoto: Leonard Low from Australia, via Wikimedia Commons, CC BY 2.0 · not taken at this site

    2. HTMS Sattakut

    Koh Tao
    8.0
    Advanced Open Water18-31 mWreckAbove your levelLevel not known: check before you book

    Marine life 8.4 · Visibility 9.4 · Wreck 7.4 · Reviews 7.4 (est.) -> 8.0

  3. Phallusia arabica near White RockPhoto: (c) portioid, some rights reserved (CC BY), via iNaturalist, CC BY

    3. White Rock

    Koh Tao
    7.9
    Open Water2-26 mBig animalsCoralAbove your levelLevel not known: check before you book

    Marine life 8.6 · Visibility 9.4 · Reef 5.8 · Reviews 7.4 (est.) -> 7.9

  4. Titan Triggerfish imported from iNaturalist photo 51505047 on 2 November 2024 near TwinsPhoto: (c) Dan Schofield, some rights reserved (CC BY), via Wikimedia Commons, CC BY 4.0

    4. Twins

    Koh Tao
    7.8
    Beginner5-25 mCoralAbove your levelLevel not known: check before you book

    Marine life 8.3 · Visibility 9.4 · Reef 5.7 · Reviews 7.4 (est.) -> 7.8

  5. Titan Triggerfish imported from iNaturalist photo 420838757 on 3 November 2024 near Hin NgamPhoto: (c) Jan Ebr & Ivana Ebrová, some rights reserved (CC BY), via Wikimedia Commons, CC BY 4.0

    5. Hin Ngam

    Koh Tao
    7.7
    Beginner3-16 mCoralAbove your levelLevel not known: check before you book

    Marine life 8.3 · Visibility 9.3 · Reef 5.3 · Reviews 7.4 (est.) -> 7.7

  6. Monofin Dartfish near Aow TanotePhoto: (c) portioid, some rights reserved (CC BY), via iNaturalist, CC BY

    6. Aow Tanote

    Koh Tao
    7.6
    Beginner2-20 mCoralWreckAbove your levelLevel not known: check before you book

    Marine life 7.9 · Visibility 9.3 · Wreck 6.6 · Reviews 7.4 (est.) -> 7.6

  7. Mottled Lightfoot Crab near King Kong RockPhoto: (c) Jean Jacques Godon, some rights reserved (CC BY), via iNaturalist, CC BY

    7. King Kong Rock

    Koh Tao
    7.6
    Open Water5-18 mAbove your levelLevel not known: check before you book

    Marine life 8.1 · Visibility 9.3 · Reef 5.3 · Reviews 7.4 (est.) -> 7.6

  8. Herring Scad near Southwest PinnaclePhoto: (c) portioid, some rights reserved (CC BY), via iNaturalist, CC BY

    8. Southwest Pinnacle

    Koh Tao
    7.6
    Advanced Open Water4-40 mBig animalsCoralDriftAbove your levelLevel not known: check before you book

    Marine life 7.3 · Visibility 9.2 · Reef 5.7 · Reviews 7.4 (est.) -> 7.6

  9. Slingjaw Wrasse near Aow LeukPhoto: (c) Jan Ebr & Ivana Ebrová, some rights reserved (CC BY), via iNaturalist, CC BY

    9. Aow Leuk

    Koh Tao
    7.5
    Beginner3-20 mCoralAbove your levelLevel not known: check before you book

    Marine life 7.8 · Visibility 9.1 · Reef 5.2 · Reviews 7.4 (est.) -> 7.5

  10. Blacktip Grouper near Green RockPhoto: (c) portioid, some rights reserved (CC BY), via iNaturalist, CC BY

    10. Green Rock

    Koh Tao
    7.5
    Open Water4-32 mCave and cavernCoralAbove your levelLevel not known: check before you book

    Marine life 7.6 · Visibility 9.4 · Reef 5.7 · Reviews 7.4 (est.) -> 7.5

  11. Pearly Monocle Bream near Japanese GardensPhoto: (c) portioid, some rights reserved (CC BY), via iNaturalist, CC BY

    11. Japanese Gardens

    Koh Tao
    7.5
    Beginner2-18 mCoralAbove your levelLevel not known: check before you book

    Marine life 7.3 · Visibility 9.4 · Reef 5.9 · Reviews 7.4 (est.) -> 7.5

  12. Mottled Lightfoot Crab near Junkyard ReefPhoto: (c) Kat Lim, some rights reserved (CC BY), via iNaturalist, CC BY

    12. Junkyard Reef

    Koh Tao
    7.5
    Beginner7-12 mMacroAbove your levelLevel not known: check before you book

    Marine life 8.0 · Visibility 9.1 · Reef 5.2 · Reviews 7.4 (est.) -> 7.5

  13. Diving Ko Tao, Thailand 1124 near Koh Nang YuanPhoto: Amada44, via Wikimedia Commons, CC BY SA 3.0

    13. Koh Nang Yuan

    Koh Tao
    7.5
    Level not yet knownAbove your levelLevel not known: check before you book

    Marine life 7.6 · Visibility 9.4 · Reef 5.7 · Reviews 7.4 (est.) -> 7.5

  14. Smalltooth Emperor near No NamePhoto: (c) ig: underwater.logs, some rights reserved (CC BY), via iNaturalist, CC BY

    14. No Name

    Koh Tao
    7.5
    Advanced Open Water11-30 mWreckAbove your levelLevel not known: check before you book

    Marine life 7.8 · Visibility 9.4 · Wreck 6.4 · Reviews 7.4 (est.) -> 7.5

  15. Bolinopsis rubripunctata near Chalok BayPhoto: (c) portioid, some rights reserved (CC BY), via iNaturalist, CC BY

    15. Chalok Bay

    Koh Tao
    7.4
    Open Water3-12 mAbove your levelLevel not known: check before you book

    Marine life 7.5 · Visibility 9.3 · Reef 5.0 · Reviews 7.4 (est.) -> 7.4

  16. Bubble Coral near HTMS Hanhak Sattru WreckPhoto: (c) portioid, some rights reserved (CC BY), via iNaturalist, CC BY

    16. HTMS Hanhak Sattru Wreck

    Koh Tao
    7.4
    Open Water16-28 mDriftWreckAbove your levelLevel not known: check before you book

    Marine life 6.7 · Visibility 9.4 · Wreck 6.6 · Reviews 7.4 (est.) -> 7.4

  17. Longfin Bannerfish near Sail RockPhoto: (c) portioid, some rights reserved (CC BY), via iNaturalist, CC BY

    17. Sail Rock

    Koh Tao
    7.4
    Open Water0-40 mBig animalsCoralDriftAbove your levelLevel not known: check before you book

    Marine life 7.0 (est.) · Visibility 9.1 · Reef 5.4 (est.) · Reviews 7.4 -> 7.4

  18. Doublebar Rabbitfish, seen at Laem Thien Bay (photo taken elsewhere)Seen here: Doublebar RabbitfishPhoto: H. Schlegel, via Wikimedia Commons, PD · not taken at this site

    18. Laem Thien Bay

    Koh Tao
    7.3
    Open Water4-14 mAbove your levelLevel not known: check before you book

    Marine life 7.2 · Visibility 9.2 · Reef 5.4 · Reviews 7.4 (est.) -> 7.3

  19. Scissortail Sergeant near Mango BayPhoto: (c) Shane Austin, some rights reserved (CC BY), via iNaturalist, CC BY

    19. Mango Bay

    Koh Tao
    7.2
    Beginner2-20 mCoralAbove your levelLevel not known: check before you book

    Marine life 6.6 · Visibility 9.4 · Reef 5.7 · Reviews 7.4 (est.) -> 7.2

  20. Blacktip Grouper near Tao TongPhoto: (c) luluchouette, some rights reserved (CC BY), via iNaturalist, CC BY

    20. Tao Tong

    Koh Tao
    7.2
    Open Water5-18 mMacroAbove your levelLevel not known: check before you book

    Marine life 7.1 · Visibility 9.3 · Reef 4.9 · Reviews 7.4 (est.) -> 7.2

  21. Doublebar Rabbitfish near Buddha PointPhoto: (c) portioid, some rights reserved (CC BY), via iNaturalist, CC BY

    21. Buddha Point

    Koh Tao
    7.1
    Open Water3-12 mCoralAbove your levelLevel not known: check before you book

    Marine life 6.9 · Visibility 9.3 · Reef 4.8 · Reviews 7.4 (est.) -> 7.1

  22. Redbreast Maori Wrasse near Lighthouse PinnaclePhoto: (c) Gonzalo Ganda Álvarez, some rights reserved (CC BY), via iNaturalist, CC BY

    22. Lighthouse Pinnacle

    Koh Tao
    7.1
    Beginner5-18 mWallAbove your levelLevel not known: check before you book

    Marine life 6.4 · Visibility 9.4 · Reef 5.7 · Reviews 7.4 (est.) -> 7.1

  23. Pillow Cushion Star near Shark IslandPhoto: (c) portioid, some rights reserved (CC BY), via iNaturalist, CC BY

    23. Shark Island

    Koh Tao
    7.0
    Open Water3-30 mBig animalsCoralWallAbove your levelLevel not known: check before you book

    Marine life 6.4 · Visibility 9.3 · Reef 5.3 · Reviews 7.4 (est.) -> 7.0

How the score works: the Divegrade method.