The 15 Best Diving Trips & Courses in Thailand

1.Open Water Course – Become certified diver in 3 days

★★★★★★★★★★5.0 · 1,137 reviews · from $358Our pick

Train for your open-water scuba certificate over three focused days with Koh Tao Scuba Club. Groups are capped at four, giving instructors such as Tom and A time to coach you closely. Expect calm local sites, a buddy system, boat trips, lunch, and a digital achievement certificate.

“Tom was an amazing instructor. He was so calm and laid back which made everything feel much less scary while also keeping us educated and safe . I was so nervous but I signed up for an advance course right after I finished .”

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2.Full-Day Beginner Scuba Course with Private Tuition, Racha Yai

★★★★★★★★★★5.0 · 368 reviews · from $162

Spend about eight hours learning scuba skills on the way to Koh Racha Yai, then complete two guided open-water sessions of 45 to 50 minutes each. Your instructor, such as Pomme, Ootdy, Tiger, or Nim, stays with you throughout. Meals, equipment, insurance, and selected Phuket transfers are included.

“An experience that should not be missed on any trip through Phuket! Easy Air conditioned transfer from hotels, a seamless meet up & boat ride out to the island, and best of all, an incredible experience once you’re there! Oody my guide felt more like a friend than an instructor, but gave clear direct instructions. I was terrified going in, but loved scuba diving because Oody provided such great direction! The pics & videos of the beautiful dive were worth it. Could not possibly recommend more!”

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3.Scuba Dive in Koh Lanta, Thailand

★★★★★★★★★★5.0 · 212 reviews · from $146

Join Phoenix Divers Koh Lanta for a two-session scuba day around Koh Haa, Ko Lanta, and Ko Bida Nok. You must be a certified diver. A maximum of four people travel with an instructor, and the package includes hotel pickup, scuba gear, lunch, snacks, drinks, and water. An optional third session costs extra.

“Phoenix divers is very organized and overall experience is super worth it! We were asked to check-in and do the fitting the day before. On dive day, meeting time was 8:20h which allowed us to have a longer rest and the crew in the pier gavRead more”

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4.Advanced Adventurer – 2 days ( Advanced Open Water)

★★★★★★★★★★5.0 · 206 reviews · from $326

Build your SSI Advanced Adventurer qualification in Koh Tao over two days with five underwater sessions, including deep, navigation, buoyancy, wreck, and night work. The course meets at Koh Tao Scuba Club at 9:30 am, keeps groups to four, and may be led by instructors such as Oni, Safari, Ae, or Rosita.

“Onilio was our instructor. Confident, knowledgeable, and putting safety first, he made the lessons fun, and allowed us to enjoy the dives, while still teaching us very useful skills. 10000/10 would recommend”

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5.Basic Diver ( One Day Experience)

★★★★★★★★★★5.0 · 205 reviews · from $127

Spend 6 to 8 hours learning basic scuba skills at Koh Tao Scuba Club, then make a supervised underwater visit to 5 meters. A second session to 12 meters is available for an added fee. Groups are limited to four, with instructors such as Jimmy praised for patient beginner support.

“Really cool. They have patience with beginners, even if you are scared like me and start panicking:)”

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6.Open Water Course

★★★★★★★★★★5.0 · 191 reviews · from $376

Learn scuba skills in a small group of no more than four students per instructor, then complete five underwater sessions around Koh Tao and Nang Yuan Island. The 2.5-day course includes classroom work, equipment training, guided open-water practice, and an exam. Instructors including Natasha, Jess, Tyler, Jony, and Malena teach in several languages.

“I booked it as a last minute option for my open water course. The communication was great from the start, George replied super quick to my queries. Tomas was helping me to register a day before I started the course, he was super nice and helpful. My instructor was EsnRead more”

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7.La Bombona Diving Koh Tao Open Water Course

★★★★★★★★★★5.0 · 172 reviews · from $423

Spend about three to four days learning scuba in Koh Tao with La Bombona Diving. You’ll study the basics, practice in a pool, then complete four supervised ocean sessions with supplied equipment. Groups are capped at four, and instructors such as George, James, Nico, and Koldo are praised for calm, patient teaching.

“My friend and I completed the Try Dive. We were a bit apprehensive at first but the instructors made us feel so excited and comfortable straight away. The day was amazing and I’d truly recommend it to anyone. We had James, who was an incredible instructor, made us feel so safe and at ease. If in doubt - do it! One of the best days Ever!”

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8.Scuba Diving Day Trip at Koh Chang – 2 Dives

★★★★★★★★★★5.0 · 150 reviews · from $130

Join BB Divers for an eight-hour Koh Chang scuba outing limited to four people. Certified divers may visit the HTMS Chang wreck or Koh Rang National Park, with guides such as Oscar, Steve, Max, or Chang, plus equipment, hotel transfers, drinks, snacks, and lunch.

“I went on 2 diving trips with BB divers represented by Oscar the boatmaster and his team. They took really good care of me and we had lovely and safe dives around the national park and the local military wreck. The equipment is well maintaiRead more”

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9.Padi open water diver course, become a diver in 3 days

★★★★★★★★★★5.0 · 113 reviews · from $586

Join BB Divers in Koh Chang for a three-day PADI Open Water course. You’ll study theory, practice in a pool or shallow bay, then complete four open-water descents around Koh Chang and Koh Rang National Park. The course includes equipment, meals, transfers from west-coast hotels, insurance, and certification to 18 meters.

“We picked BB Divers for our Open Water Diver certificate and we couldn't be happier. Our first day of theory and pool practice took place in Cliff cottage restaurant, which is located in an incredible environment, with cozy seating options, dRead more”

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10.Dive trip with 2 dives (start from Ko Kut)

★★★★★★★★★★5.0 · 111 reviews · from $136

From Koh Kood, BB Divers takes you by wooden boat to Koh Rang National Park for two guided scuba sessions in groups of no more than five. Lou, Morgan, Marcus, or Janice may lead your underwater time. Equipment, Thai buffet lunch, drinks, snacks, resort pickup, and return transport are included. A THB400 park fee may apply.

“We dived with Morgan and dive went very smoothly and professionally! Enjoyed the trip very much!”

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11.Kata Beach Diving for Beginners Pool Training and 1 Beach Dive

★★★★★★★★★★5.0 · 102 reviews · from $114

Spend about eight hours learning scuba skills in a pool, then head into the water near Kata Beach, or possibly Koh Racha Yai depending on the operating plan. Certified instructors such as Sky, Gan, or Tim may guide you. Equipment, meals, insurance, transfers, and a shallow reef session are included.

“Beginner dive skills & practice in the pool then out to the beach. Divers need to be able to walk ~50m across the beach wearing their dive gear to enter the water. The dive shop has outdoor shower and drinking water available. David was great with communication beforRead more”

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13.Discover Scuba diving, try diving for beginners (starts from Koh Chang)

★★★★★★★★★★5.0 · 89 reviews · from $179

Spend about eight hours learning scuba basics at BB Divers, then take two slow, supervised underwater sessions off Koh Chang. Your instructor stays close, helping with shallow-water skills before you reach a maximum depth of 12 meters. Hotel pickup, equipment, lunch, and drinks are included. Pavel is one instructor praised for calm, reassuring guidance.

“Toller Ausflug, gute Erklärung, alles perfekt. Hatte ein bisschen Angst vor dem Tauchen, aber unser Guide Pavel hat mir die Angst genommen. Danke. Top.”

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14.Koh Chang Dive Trip Including 3 Dives (Start at Koh Chang)

★★★★★★★★★★5.0 · 81 reviews · from $169

Start at BB Divers at 8 a.m. for three guided scuba sessions around Koh Chang. You may visit the HTMS Chang 712 wreck and two reefs, or head to Koh Rang National Park for coral sites. Guides including Oscar, Steve, Markus, and Geoff help keep the day calm and personal. Lunch, gear, drinks, fruit, and hotel transfers are included.

“It was an excellent experience. The team was extremely punctual and professional, and we were picked up directly from our accommodation, so we didn’t have to worry about anything throughout the trip. On the boat, we enjoyed refreshing beverages, delicious food, snacks, and fresh fruit. The snorkeling was very enjoyable. Highly recommended.”

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15.Half Day Discover Scuba (2 Dives)

★★★★★★★★★★5.0 · 77 reviews · from $127

Spend about five hours with Blue View Divers on two supervised shallow-water scuba sessions near Phi Phi Leh and Ko Bida Nok. PADI instructors, groups of up to 10, and a maximum of two divers per instructor keep the pace personal. You’ll receive online training, equipment, lunch, fruit, and time around Maya Bay and Viking Cave.

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