15 Top Tours & Experiences In Koh Tao (With Reviews & Prices)

Koh Tao is one of Thailand’s most popular islands for good reason. Its crystal-clear waters, vibrant coral reefs, and lively marine life make it a haven for travelers seeking underwater adventures and scenic excursions. Whether you want to earn your scuba certification, snorkel with turtles, or explore hidden bays, Koh Tao offers a variety of tours and experiences tailored to different interests and skill levels. We particularly recommend the Open Water Course for first-timers who want to get certified or the Full Day Treasure Hunt for those looking for a fun, interactive way to see the island.

While many come for the underwater sights, Koh Tao’s diverse options go beyond just snorkeling and diving. You can enjoy a private road trip to viewpoints, embark on snorkel trips to multiple islands, or even join scenic boat tours—there’s something for all. Our list covers the best options, whether you’re on a budget or seeking a more comprehensive experience.

Quick Overview

Here’s a quick look at what makes Koh Tao’s tours stand out:
– Scuba certifications such as the Open Water Course and Advanced Open Water
– Snorkeling adventures at famous spots like Nang Yuan Island, Mango Bay, and Shark Bay
– Full day explorations such as the Treasure Hunt or multi-island snorkeling tours
– Introductory experiences like Try Scuba Diving and Discover Scuba Diving
– Private trips and scenic drives including the Koh Tao private road trip

Below, we unpack each of these top-rated Koh Tao tours with what makes them a good choice for different travelers.

1. Open Water Course

Rated 5.0/5 with 191 reviews, the Open Water Course is the most popular way to get certified in Koh Tao. For around $376, over about 2.5 days, you’ll learn the fundamentals of scuba diving, culminating in your official PADI certification. The course includes theoretical classes, 5 dives, and a practical exam. The small group setting at DPM Diving ensures personalized attention, making it ideal for nervous beginners or those wanting a relaxed pace.

What sets this apart is the chance to learn in crystal-clear waters with colorful reefs and the possibility to explore Nang Yuan Island after your lessons. Many guests praise the friendly instructors and the safety-first approach. The course is perfect if you’re serious about diving and want a professional, well-organized program that leaves you confident to explore the underwater world independently.

Bottom line: If you’re ready for an in-depth certification experience on a tropical island, this course offers quality instruction at a fair price, with high reviews to back it up.

2. Basic Diver (One Day Experience)

Rated 5.0/5 with 205 reviews, the Basic Diver experience is ideal for those who want a quick introduction to scuba diving. For around $127, you’ll complete a theory session and enjoy two shallow dives with an SSI professional. The first dive is at a maximum of 5 meters, focusing on fundamental techniques, while the second can go deeper up to 12 meters. The small group (max 4 per instructor) ensures plenty of individual attention, making nervous first-timers feel safe.

Guests love how patient and encouraging the instructors are, especially for beginners. If you’re short on time but eager to experience the underwater world firsthand, this one-day trip is a good choice. It’s also a great way to see if you’d like to pursue full certification later.

Bottom line: Perfect for first-timers who want a safe, straightforward intro to scuba diving in Koh Tao without committing to a full certification.

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

Rated 5.0/5 with 206 reviews, the Advanced Adventurer course is designed for divers who already have some certification but want to expand their skills. Over two days, you’ll complete 5 dives, including a deep dive (max 30 meters) and other specialties like buoyancy, night diving, or navigation. The course gives a taste of different skills, helping you become a more confident diver.

The small group setting and flexible schedule make it suitable for those who want a tailored learning experience. Many reviewers appreciate the professional guidance and the opportunity to explore more challenging dives safely. This course suits adventurous travelers wanting more than just the basics.

Bottom line: If you’re a certified diver eager to boost your skills and confidence, this course offers a practical, well-reviewed way to do so in Koh Tao.

4. La Bombona Diving Koh Tao Open Water Course

Rated 5.0/5 with 172 reviews, the La Bombona Diving Koh Tao Open Water Course combines classroom, pool, and ocean dives over three days for about $424. It includes all equipment, training materials, and certification. The course begins with in-depth theory and confined water practice, then moves to four ocean dives off Koh Tao’s coast.

What makes this offering stand out is its comprehensive approach and the emphasis on preparing you to dive worldwide. The reviews highlight the professional staff and the smooth process, perfect for those who want thorough training and certification. It’s ideal if you want to leave with a recognized qualification and enjoy Koh Tao’s marine environment at the same time.

Bottom line: For those serious about diving and wanting a complete, quality certification, this course provides excellent value.

5. Become Certified Diver in 3 Days – PADI Open Water Diver Course on Koh Tao

Rated 5.0/5 with 104 reviews, this 3-day PADI course is a popular choice for travelers who want to get certified quickly. It combines theory sessions, confined water training, and two open water dives, culminating in a PADI certification. The course is conveniently located within walking distance from the pier, making logistics easy.

Guests praise the flexibility and clear instruction, with many mentioning the ease of completing certification within their holiday schedule. The inclusion of a diving logbook allows you to track future dives. It’s best suited for travelers short on time but eager to dive independently afterward.

Bottom line: An efficient, well-rated course for those wanting their certification within three days, with the convenience of a central location.

6. Fun Diving Packages (Certified Divers)

Rated 5.0/5 with 93 reviews, this Fun Diving Package is targeted at certified divers looking to explore multiple Koh Tao dive sites in a single day. For around $72, you get boat transfers, scuba gear, and guidance on several dives, including popular spots.

Reviewers enjoy the hassle-free experience and the chance to see diverse marine life. The package is perfect for experienced divers wanting to maximize their time and cover multiple sites without organizing gear or transportation themselves.

Bottom line: If you’re a certified diver aiming to visit several reefs in one day, this organized, all-inclusive package offers great value.

7. Full Day Treasure Hunt on Koh Tao

Rated 5.0/5 with 86 reviews, this Treasure Hunt turns sightseeing into a fun, game-like experience. Over six hours, teams solve puzzles, visit beaches and viewpoints, snorkel along marine-rich spots, and hunt for hidden treasure. It’s ideal for groups, families, or solo travelers who enjoy interactive, active outings.

Guests mention the variety of activities—from hiking viewpoints to snorkeling with turtles—making it a well-rounded day. The friendly guides and the chance to explore the island’s lesser-known areas make this a memorable adventure.

Bottom line: For a lively, engaging way to see Koh Tao while solving clues and snorkelling, this tour is hard to beat.

8. Premium Snorkel Tour to the Bays of Koh Tao onboard the Oxygen

Rated 5.0/5 with 112 reviews, this snorkel tour offers a relaxing day cruising to the island’s top spots. For about $45, you visit Freedom Bay, Buddha Rock, Shark Bay, and more, with supplied sandwiches and fresh fruit. The boat limits groups to 25, ensuring a comfortable experience.

According to reviews, the crew is friendly and attentive, and snorkelers often see sea turtles, sharks, and vibrant reefs. Ideal for those who prefer a laid-back day on the water with plenty of time to relax and enjoy underwater sights.

Bottom line: A great choice if you want a stress-free, scenic boat trip with good snorkeling and good food.

9. Snorkelling Trip 5 Island Tour Around Koh Tao and Koh Nang Yuan

Rated 5.0/5 with 81 reviews, this 5-island snorkeling tour offers a full day of marine exploration. Starting with pickup and a boat ride, you’ll visit Nang Yuan Island, Mango Bay, and other top sites. The trip includes lunch, snorkeling gear, and the chance to see sea turtles and reef sharks.

Guests rave about the well-organized itinerary and the chance to see multiple underwater environments in one day. The tour is suitable for all skill levels, and many appreciate the expert guidance.

Bottom line: For those wanting an all-around snorkeling experience covering several key spots, this tour delivers excellent value.

10. Try Scuba Diving

Rated 5.0/5 with 46 reviews, this Try Scuba Diving experience is perfect for complete beginners. For around $121, you’ll get instruction, gear, and one or two dives around Nang Yuan Island. The program is designed to be fun and relaxed with a focus on safety.

Guests highlight the approachability of the instructors and the beautiful underwater scenery. It’s ideal if you’re curious but not ready for certification. Plus, completing this tour grants you a Basic Diver certification for future dives.

Bottom line: An excellent introduction for first-timers who want a memorable, low-pressure experience in Koh Tao’s waters.

11. Snorkel Tour to Koh Nangyuan and the hidden bays of Koh Tao onboard the Oxygen

Rated 5.0/5 with 190 reviews, this tour offers a secluded snorkeling experience. Starting at $27.72, it visits lesser-known bays, with stops at Nangyuan Island, Mango Bay, and Hin Wong Bay. The tour includes snorkel gear and lunch, making it a convenient full-day adventure.

Guests mention how uncrowded and peaceful the stops are, with opportunities to spot sea turtles and colorful reefs. The small group size adds to the intimate feel.

Bottom line: Perfect if you want to explore Koh Tao’s hidden marine spots with minimal crowds.

12. CocoTipAdventures and Snorkel with Meals-BBQs-Cocktail-Sunset

Rated 5.0/5 with 46 reviews, this Sunset Snorkel Tour costs about $55 and offers a relaxed 7-hour trip. It includes barbecue, cocktails, and snorkeling around the island’s top bays, like Mango Bay and Hin Wong Bay. The tour emphasizes good food and sunset views.

Reviewers say the small group size and friendly staff make it feel more like a special outing. The snorkeling spots are full of fish and coral, and the sunset provides a perfect backdrop.

Bottom line: If you want a combination of good food, scenic views, and snorkeling, this tour is a relaxing, enjoyable choice.

13. Snorkel Trip to Koh Nangyuan and Bays of Koh Tao By The Oxygen

Rated 5.0/5 with 30 reviews, this 6-7 hour tour offers visits to great snorkeling spots with an emphasis on secluded bays. For about $29.70, you’ll enjoy lunch, snorkeling gear, and multiple sites including Nangyuan Island.

Many reviewers appreciate the efficient itinerary and the opportunity to see turtles and vibrant reefs. The included lunch and small groups make for an easy, hassle-free day.

Bottom line: Best suited for those wanting a budget-friendly, comprehensive snorkeling tour with multiple stops.

14. PADI Discover Scuba Diving in Koh Tao – Half Day and Two Dives

Rated 4.5/5 with 74 reviews, this half-day scuba experience costs about $121. It includes two dives, gear, and snacks. The instructor guides you through underwater exploration in Koh Tao’s lively reefs, with an emphasis on safety and fun.

Reviewers mention the professional attitude of the staff and beautiful marine life. It’s a great way to try scuba without committing to full certification.

Bottom line: Ideal for first-time divers wanting a short, impactful underwater experience.

15. Koh Tao: Private Road Trip To 8 Famous Places

Rated 4.5/5 with 16 reviews, this private island tour takes you to 8 viewpoints and beaches in about 6 hours. It’s perfect for travelers who want to see the island’s highlights at their own pace, with stops at John Suwan View Point, Freedom Beach, and West Coast Viewpoint.

Guests love the personalized experience and the breathtaking views. The guide is described as very informative and accommodating.

Bottom line: For those preferring a customized scenic tour with easy access to photo-worthy spots, this is a flexible and scenic choice.

How to Choose the Right Tour in Koh Tao

When selecting your Koh Tao experience, consider your budget, time, and interests. If you want to get certified and have an extended underwater experience, the Open Water Course or the La Bombona Open Water are excellent options. For a quick intro without certification, try the Basic Diver. If snorkeling is your main goal, tours like the Premium Bays Tour or the 5 Island Tour provide ample marine encounters. Budget travelers will appreciate the snorkel trips with included gear like those from Oxygen, while those seeking a more personalized or scenic experience may opt for the Koh Tao private road trip.

Booking early, especially during high season, ensures availability for popular courses and tours. Think about your fitness level—some trips involve hiking viewpoints or multiple boat stops—so plan accordingly.

In summary, Koh Tao offers a diverse array of tours and experiences for every traveler. Whether you’re looking to become a certified diver, snorkel with turtles, or explore the island’s viewpoints, there’s an option suited for your preferences. For first-time divers, the Open Water Course stands out as a comprehensive way to start your underwater journey, while seasoned divers can maximize their time with fun diving packages. Active explorers will enjoy the treasure hunt or the private scenic road trip, ensuring you leave with unforgettable memories. As these tours tend to fill up fast, especially in peak season, booking early is highly recommended to secure your spot. Happy adventuring!