Scuba diving in Pattaya Thailand offers year-round underwater adventures just a short ride from the bustling city. Located on the eastern Gulf of Thailand, Pattaya boasts around a dozen tropical islands and over 30 diverse dive sites. The region is ideal for fun divers, beginners, tech divers, and wreck diving enthusiasts alike. With warm water temperatures, easy logistics, and short boat rides, it’s no surprise that the Pattaya dive sites are among the most accessible in the country.
The dive sites around Pattaya can be grouped into three main areas:
Located just 30–45 minutes from shore, the Near Islands include Koh Larn, Koh Sak, and Koh Khrok. These dive sites are ideal for beginner to intermediate divers, training dives, and relaxed fun diving.
Roughly 60–90 minutes offshore, the Far Islands like Koh Rin, Koh Phai, and Koh Man Wichai offer clearer waters, better coral cover, and more diverse marine life. These are popular with advanced and certified divers looking for more rewarding dives.
Situated further south in a protected naval zone, the Samae San area and its nearby islands feature excellent coral reefs, wrecks, and less diver traffic. Permits are required to dive here, making the sites pristine and a hidden gem among Pattaya Islands.
Accessible within 30–40 minutes by boat, best for beginner to intermediate divers, training dives, and relaxed reef exploration.
🔹 Sites: East, West, Cubes, & Deep Reef
🔹 Depths: 5–23 meters
🔹 Dive Type: Reef, Muck & Macro
🔹 Common Marine Life: Hawksbill Sea Turtles, Moray eels, nudibranchs, Giant Pufferfish, blue-spotted stingrays, Seahorses and Gobiefish/Shrimps
🔹 Unique Features: Horseshoe-shaped bay with fringing reefs to the east and west. The protected bay is Ideal for beginner divers and confined sessions, easy navigation. The west side offers a deep reef to explore and an expansive sandbar area for muck macro diving.
🔹 Summary/Overview: This sheltered dive site is perfect for Open Water courses and macro photography. Its sandy bottom slopes gently into a coral-encrusted reef wall, and its calm conditions make it a favorite for new divers getting their fins wet. The Coral reef is also very diverse here with a good mixture of hard corals, softcorals and sea fan and whips.
🔹 Site: 60m Long WW2 Warship
🔹 Depth: 18–32 meters
🔹 Dive Type: Wreck Diving / Macro
🔹 Common Marine Life: Sea Turtles, Schooling barracuda, batfish, trevally, scorpionfish and occasional Dolphin
🔹 Unique Features: Total coral Cover with Engine room, tower and corridors. Penetrable rooms, upright position, advanced wreck training site
🔹 Summary/Overview: This decommissioned Thai Navy vessel is a favorite among AOW divers and tech diving students. Sitting upright and completely intact, it provides solid penetration training and attracts larger pelagic life on the deeper side.
🔹 Sites: Koh Khrok Reef West, Bay and Deep Reef
🔹 Depths: 5–20 meters
🔹 Dive Type: Coral reef, macro – Good Drift
🔹 Common Marine Life: Sea Turtles, Pipefish, anemonefish, butterflyfish, scorpionfish
🔹 Unique Features: Colorful coral bommies and scattered reef heads – Giant Sea fans and Anenome garden
🔹 Summary/Overview: Koh Khrok is a great secondary dive for the day. Visibility can vary, but the small rock and reef formations often hide a surprising variety of life for those with a sharp eye. This island provides a good drift dive with the right tides and is also a sea turtle hotspot.
![Pattaya Near Islands - Gulf of Thailand-Dive Sites [divinginternships.com]](https://divinginternships.com/wp-content/uploads/2025/04/Pattaya-Near-Islands-Guilf-of-Thailand-Dive-Sites-divinginternships.com_.jpg)
Deeper, clearer waters, more advanced diving and richer reef systems about an hour-plus boat ride away.
🔹 Site: 60m Long WW2 Warship
🔹 Depths: 15–28 meters
🔹 Dive Type: Deep Wreck Macro
🔹 Common Marine Life: Hawksbill Sea Turtles, Bamboo Sharks, nudibranchs, Giant Pufferfish, blue-spotted stingrays, Seahorses, Snapper, and rabbitfish.
🔹 Unique Features: Upright wreck with full coral cover, tower, engine room, corridors, and the legendary “black hole” access point
🔹 Summary/Overview: The HTMS Khram is arguably Pattaya’s premier wreck dive. Popular with advanced divers, it offers plenty of points of interest including swim-throughs and deck-mounted gun areas.
Site: East Bay / South Bay
Depth: 4–18 meters
Dive Type: Reef Diving / Drift / Macro
Common Marine Life: Sea Turtles, Cuttlefish, parrotfish, wrasse, trevally, scorpionfish and Seahorses
Unique Features: Healthy coral formations, vibrant soft corals Rare Macro finds on muck dives.
Summary/Overview: Koh Phai is known for its nice scenery and visibility with colorful reef life. A great site for underwater photographers and those who enjoy relaxed, scenic dives with fewer crowds.
🔹 Sites: East Main Bay, South and Deep Reef
🔹 Depths: 5–20 meters
🔹 Dive Type: Coral reef, macro – Good Drift
🔹 Common Marine Life: Sea Turtles, Pipefish, Damsel fish, groupers, nudibranchs, butterflyfish, Giant Seahorses and Bamboo Sharks.
🔹 Unique Features: Beautiful Coral garden formations, Giant Sea fans and Rocky Deep Reef with giant stones
🔹 Summary/Overview: Koh Klung Badan island is a less-visited Pattaya dive site with pristine coral formations and minimal current, this is a hidden gem for those wanting a peaceful dive with solid marine biodiversity.
![Pattaya Far Islands - Gulf of Thailand-Dive Sites [divinginternships.com]](https://divinginternships.com/wp-content/uploads/2025/04/Pattaya-Far-Islands-Guilf-of-Thailand-Dive-Sites-divinginternships.com_.jpg)
🔹 Sites: THe Fingers, The Wall The Bay, The Drift Drop Off
🔹 Depths: 5–22 meters
🔹 Dive Type: Coral & Rocky Ledges and formations. Macro & Wall Diving
🔹 Common Marine Life: Sea Turtles, Barracuda, Octopus, Pipefish, Seahorses, Saddleback clownfish, anemonefish, butterflyfish, scorpionfish, Batfish, surgeonfish, porcupinefish.
🔹 Unique Features: Giant coral bommies and Stone ledges with wall area and finger shaped rock mini pinnacles with excellent visibility
🔹 Summary/Overview: Koh Man Wichai is a diver favorite due to its Finger rock structures and Wall Drop off. With lots of large schools of fish and often turtles, rays and sharks on most dives its one of the best dive sites in the Gulf of Thailand. Visibility is generally better here than at the Near Islands, and currents are manageable for most experience levels.
🔹 Sites: Front Bay, Back Bay
🔹 Depths: 5–20 meters
🔹 Dive Type: Reef, Drift & Macro
🔹 Common Marine Life: Hawksbill Sea Turtles, Moray eels, nudibranchs, Giant Pufferfish, blue-spotted stingrays, Seahorses and Bamboo Sharks
🔹 Unique Features: Circular-shaped Rocky Isle with fringing reefs to the east and west. The protected bay is Ideal for beginner divers and confined sessions, easy navigation. The west side offers a deep reef to explore and an expansive sandbar area with bioluminescent soft corals
🔹 Summary/Overview: North Rock is best dived on slack tide but can make for an exciting drift dive. The pinnacle rises from the seabed and attracts fish life like a magnet. It’s ideal for advanced divers comfortable with variable conditions.
Site: Bay, Main Reef, Drop off Reef, South Bay, The Ledges
Depth: 6–25 meters
Dive Type: Coral Reef Diving / Macro
Common Marine Life: Sea Turtles, Schooling barracuda, batfish, trevally, scorpionfish and Giant rays, morays and reef shark
Unique Features: Total fringing coral Cover with giant rock formations and reef gardens. Good range of depth for beginner to advanced diver training.
Summary/Overview: Koh Rin island offers some of the best coral reef diving around the Pattaya Islands. Expect steep reef walls, vibrant coral gardens, and larger schools of fish and marine life.
![Koh Rin Pattaya Far Islands - Gulf of Thailand Dive Sites [divinginternships.com]](https://divinginternships.com/wp-content/uploads/2025/04/Koh-Rin-Pattaya-Far-Islands-Gulf-of-Thailand-Dive-Sites-divinginternships.com_.jpg)
🔹 Sites: South Rock Reef
🔹 Depths: 5–20 meters
🔹 Dive Type: Reef, Drift & Macro
🔹 Common Marine Life: Sea Turtles, Moray eels, nudibranchs, stingrays and Bamboo Sharks
🔹 Unique Features: Dramatic underwater topography
🔹 Summary/Overview: South Rock complements the Koh Rin area with a rockier profile, ideal for divers who enjoy a mix of reef and structure. It’s a good second dive after exploring Koh Rin proper.
Located south of Pattaya in a controlled-access naval zone, the Samae San Islands are a diver’s paradise offering pristine conditions, minimal boat traffic, and some of the region’s most biodiverse reefs. This area is popular with experienced divers due to its more advanced wrecks, deeper pinnacles, and often stronger currents. Home to the legendary Hardeep Wreck and vibrant marine ecosystems, the Samae San region boasts a quieter, more untouched dive experience compared to the main Pattaya Islands. It’s one of the best places to explore top-tier Pattaya dive sites in a national marine park setting.
🔹 Site: 1920’s Steamship Wreck
🔹 Depths: 21–28 meters
🔹 Dive Type: Deep Wreck Macro
🔹 Common Marine Life: Hawksbill Sea Turtles, Blacktip Sharks, Batfish, lionfish, snapper, groupers, scorpionfish, nudibranchs and real stonefish
🔹 Unique Features: Upright wreck, large penetration areas, bow and stern structure intact.
🔹 Summary/Overview: Originally a German cargo ship sunk sank after striking a rock causing an engine room fire. The Bremen wreck rests upright in deeper waters and is now covered in marine growth. This site is reserved for advanced divers due to its depth and penetrable structure. Divers can explore open cargo holds, twisted stairwells, and long open passageways—perfect for those with wreck specialty training. Visibility tends to be clearer here than in central Pattaya islands sites, and strong currents can add a thrilling challenge.
Site: The Wall, East Side Reef / South Side Reef
Depth: 4–25 meters
Dive Type: Reef Diving Rocky Pinnacle / Drift / Macro
Common Marine Life: Sea Turtles, Cuttlefish, parrotfish, wrasse, trevally, Giant pufferfish, moray eels, barracuda, stingrays and nudibranchs.
Unique Features: Rocky outcrops, swim-throughs, varied topography including 18m Wall to dive.
Summary/Overview: Sharkfin Rock is one of the best dive sites in the Gulf of Thailand. A dramatic granite pinnacle that rises from the depths, with steep walls and scattered boulders creating exciting terrain for drift and exploration. Currents can be intense, making it ideal for experienced divers. Macro lovers will enjoy nudibranchs and flatworms along the sheltered sides, while pelagic activity increases around the deeper drop-offs.
🔹 Site: WW2 Bombed Cargo Steamship Wreck
🔹 Depth: 19–28 meters
🔹 Dive Type: Historic Wreck / Penetration / Deep Wreck Macro
🔹 Common Marine Life: Sea Turtles, barracuda, Whalesharks, Bluespotted Rays, Batfish, lionfish, snapper, groupers, scorpionfish, nudibranchs and Angelfish
🔹 Unique Features: WWII-era Thai freighter, lying on starboard side, engine room access, and large cargo holds. Nearby Bombs.
🔹 Summary/Overview: The Hardeep Wreck is a must-dive in the Pattaya dive sites lineup. Resting on its side since it was bombed during WWII, it’s one of Thailand’s most famous wreck dives. Covered in sponges and coral growth, the wreck offers excellent penetration opportunities through the engine room, companionways, and cargo holds. With decent visibility and minimal silt, it’s ideal for wreck divers looking for a longer bottom time and extensive interior routes.
🔹 Sites: The Bay, Ban Tahan, Had Nam Keaw, Japanese Gardens
🔹 Depths: 5–22 meters
🔹 Dive Type: Coral & Rocky Ledges and formations. Macro & Muck Diving ideal for beginner and advanced divers alike.
🔹 Common Marine Life: Sea Turtles, Barracuda, Octopus, Pipefish, Seahorses, Saddleback clownfish, anemonefish, butterflyfish, scorpionfish, Batfish, boxfish, porcupinefish.
🔹 Unique Features: Fringing coral reefs with drop-offs. Large and Giant coral bommies and rocky outcrops and mini pinnacles with excellent visibility
🔹 Summary/Overview: Koh Chaung is mostly a sheltered island with calm waters and decent visibility, Koh Chuang is often used for open water training dives or relaxed second tanks. With sandy bottoms and scattered coral bommies, it’s also a great place for macro spotting and buoyancy control practice.
🔹 Sites: Hin Yai / Hin Chalarm
🔹 Depths: 5–25 meters
🔹 Dive Type: Reef & Pinnacle Drift & Macro
🔹 Common Marine Life: Hawksbill Sea Turtles, Trevally, jacks, sweetlips, morays, soft coral, nudibranchs, Giant Rays, possible Whalesharks.
🔹 Unique Features: Circular-shaped Rocky Isle with fringing reefs, overhangs, sea fans and abundant marine. Advanced dive site
🔹 Summary/Overview: Hin Chalam is a far islands and Hin Yai is a deeper pinnacle known for unpredictable currents and big-fish sightings. Best dived during slack tide, this site features deep walls, coral-covered ridges, and stunning soft coral gardens. One of the more thrilling Pattaya island dives for seasoned divers.
Site: Bay, Main Reef, West Side Drop Reef
Depth: 6–18 meters
Dive Type: Coral Reef Diving / Macro
Common Marine Life: Shrimp gobies, sea slugs, moray eels, cuttlefish, batfish, trevally, scorpionfish and Stingrays.
Unique Features: Very Clear, Calm Bay with nice shallow photography spots. Muck diving potential, coral rubble, sandy patches, macro haven
Summary/Overview: Koh Chan might not look dramatic on the surface, but beneath it lies one of the best macro sites in the Samae San area. With sandy stretches dotted by coral rubble and sea fans, it’s a playground for photographers seeking nudibranchs, ghost pipefish, and seahorses.
🔹 Sites: T.94 & T.95 Patrol Boats
🔹 Depths: 14–20 meters
🔹 Dive Type: Wreck Dive
🔹 Common Marine Life: Sank Sept 2024 Marine Life Developing
🔹 Unique Features: Double Wreck Site: Two patrol boat wrecks 100m apart, upright and intact, excellent for wreck navigation
🔹 Summary/Overview: Sunk in Sept 2024 to create artificial reef structures, the T-Wrecks are two retired Thai navy patrol boats resting upright and parallel to one another. With easy access to decks and tight passageways, they offer safe and engaging wreck diving for intermediate and advanced divers. This site also attracts schooling fish and pelagics in the right season.
🔹 Sites: North Face Reef, NudiRocks, Drop Off Wall, Drifters Reef
🔹 Depths: 6–20 meters
🔹 Dive Type: Coral Reef / Macro Dive
🔹 Common Marine Life: Sea Turtles, Flase Clownfish, Nudibranch, Filefish, Rays, Anemonefish, sea stars, puffers, crinoids, gobies.
🔹 Unique Features: Protected min wall area, sloping reef, perfect for training and relaxed dives
🔹 Summary/Overview: Koh Ron, a pair of small islands in the Samae San group, is known for gentle slopes and calm seas—an ideal playground for beginners or those brushing up their skills. Great light penetration and calm waters make it popular with snorkelers and dive courses.
🔹 Sites: Koh Samae San Bay & Koh Chang Klua Easy & West
🔹 Depths: 5–20 meters
🔹 Dive Type: Coral, Drift & Macro
🔹 Common Marine Life: Sea Turtles, Trevally, soft coral, nudibranchs, Parrotfish, butterflyfish, eels, cuttlefish, cleaner shrimp.
🔹 Unique Features: Multiple reef sections, sea fan forests, vibrant hard and soft coral.
🔹 Summary/Overview: These two islands offer a beautiful blend of reef slopes, hard coral tables, and vibrant soft coral fields. Ideal for underwater photographers and those who want a scenic dive without strong current. Calm conditions often make this a relaxing second dive after a deeper wreck or pinnacle site nearby.
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