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Diving and snorkeling in Koh Samui from the best boats, to the best places - for the best prices (TripAdvisor)

Koh Samui diving and snorkeling tours on our catamaran from Ko Samui to Koh Tao, Sail Rock, Angthong National Marine Park and more

koh samui diving, diving koh samui, koh samui scuba, koh tao

Scuba diving and snorkeling tours in Koh Samui with the most modern and luxurious day boats in the Gulf of Thailand. Our Calypso custom-made design provides you with the ultimate in comfort, safety and style. Spacious indoor and outdoor seating; snack bar; fly deck with 360 degrees view;
sun deck and a huge dive deck.

With our high speed catamarans you reach all dive sites in the fastest and most comfortable way.

Dive Tours

Big3 Simply The Best

southwest, chumporn


Big 3 One Day 3 Dives

The Big 3 are some of the three top dive sites in the world, Chumphon Pinnacle, Southwest Pinnacle and Sail Rock.

Exclusive to Calypso Diving visit all three dive sites in one day. Experience a wild range of tropical reef life including pelagic fishes. Giant groupers, barracudas and blue marlins are discovered at these top dive sites, amongst many others.

Here, you will enjoy those special kinds of dives, where diving becomes pure adventure.

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Tao Island 3 Top Dive Tour

boat tao


The island of Koh Tao and Sailrock are the two islands for this amazing dive tour with Calypso Diving. Both islands are world famous diving sites in the Gulf of Thailand. Calypso Diving offer two dives in Koh Tao and the final dive at Sailrock.

The dives around Koh Tao may include White Rock, Green Rock, Hin Wong Pinnacle and Shark Island. The wreck of HTMS Sattakut is also a possibility at Koh Tao. This trip is suitable for all certification levels, and for training dives. PADI instructors guide you every step of the way above and below water.

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Sail Rock Pure Magic

sail rock


Sail Rock is on of the best sites for scuba diving from Koh Samui. Whale shark can be spotted at the Sail Rock. For the Sail Rock is the dive season the hole year arround.

Two dives at Sail Rock in one day! MAGIC! Sail Rock sits 15 m above and 35 m below the surface with large granite boulders creating deep crevices that are hiding a variety of tiny cleaner shrimp and shallower points that are covered with anemones and seeming with colourful damsel fishes.

Sail Rock is famous for its natural underwater chimney swim through which divers can enter

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Dive, Snorkeling and Try Dives

Fun and exciting holiday experiences for everyone

Tao Island Our Bestseller


Tue, Thu and Sat

The island of Koh Tao is a world famous diving site in the Gulf of Thailand. Calypso Diving offer long and relaxed dives in quiet bays at this tropical island. Cosy warm tropical bays ideal for all levels of diving and snorkelling. The dive sites include Japanese Gardens, Mango Bay, Hin Wong Bay, Lighthouse Bay or Ao Leuk.

Certified PADI instructors guide you every step of the way above and below water. On this tour with Calypso Diving scuba diving and diving courses are an option to further your diving career. If your diving career is just beginning or it has been awhile since your last dive this is a perfect tour to start. Koh Tao diving tour is at depths of 12 to 18 meters.

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2IN1 Island Dreams



The Angthong Marine National Park is the most visited island in the Gulf of Thailand. The island is covered in thick mangrove forests and home to an abundance of words and wildlife. Popular for climbing the view points to see the surroundings islands and tropical waters below. Clear warm tropical waters make the park popular for snorkelling.

The corals and reefs inhabitants include butterflyfish angelfish parrotfish, stingray and Grouper. Koh Tao is a famous diving and snorkelling site known worldwide for its rich marine life. The diversity of corals is abundant, stone corals, table brain and mushroom corals surround the rocky underwater landscape at “turtle island”.

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Try Dive

discover scuba


Are you interested in exploring the underwater world? Have you ever wondered what it would be like to breath with scuba gear? Discover Scuba Diving (DSD) program is for you.

For all those who always wanted to take a closer look at marine creatures, the Try Diving program is offering the perfect start into the world of Scuba Diving.

oining one of our day trips (discover scuba diving is possible on any day of the week) you can do two dives down to our colourful reefs in our area. Where as at the first dive, there is a bit of training involved, we are just enjoying underwater life for the second dive.

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PADI Dive Courses

Reach the best dive sites available on the best boat possible.

Scuba Diver


The PADI Scuba Diver represents the “small” diving license. When doing this course you will learn how to dive in a save manner down to a depth of 12 meters. The Scuba Diver course lasts one and a half or two days. The shorter option is half a day training in the pool and a day tour. The other option would be to start the Discover Scuba Diving program first and another day tour on the second day.

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Open Water Diver


International Diving license to 18 meters: The PADI Open Water Diver is the “classic” diving license. When going for this course you will learn how to dive in a safe and responsible manner to a depth of 18 meters. Then you’ll be allowed to dive most of the world’s dive sites and cover the most interesting part of a reef. A wide range of important diving skills and theoretical knowledge will be part of this course.

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Advanced OWD


The PADI Advanced Open Water Diver is the diving license for all those who are already Open Water Divers and would like to literally immerse themselves deeper into the world of scuba diving. When doing this course you will learn how to dive in a responsible manner and in different conditions down to a depth of 30 meters. Especially in terms of going deeper your senses and your abilities to dive will be sharpened during this course. Apart from depth you will also learn considerations while diving in different conditions.

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catamaran, Mintra, Anatta

Left our tour catamaran Anatta on the right our catamaran yacht Mintra.
Each boat has 900 HP and cruises at speeds up to 26 knots. Fast and comfortable to all dive sites. This is the highest level of comfort you can experience from Koh Samui. The catamaran hull makes for a super smooth ride. The boats have the highest safety standards.


© Calypso 2017