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

Dive and snorkel trips from the best boats, on the best places, for the best prices - TripAdvisor


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 catamarans provides you with the highest level of comfort, safety and style. Spacious indoor and outdoor seating, snack bar, a flying bridge deck with a 360 degrees view and a huge dive deck.

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

Diving Tours from Koh Samui

The gulf of Thailand is filled with amazing dive sites and under all deep dive sites the Big3 – Sail Rock, Chumphon Pinnacle and Southwest Pinnacle – are simply the best and a must in your dive itinerary. Here is your chance to see the wonderful whale shark as same as big schools of different fishes. The visibility can reach 30 meters and more.

Chumphon & Sail Rock

southwest, chumporn

Mondays - 2 dives

Chumphon Pinnacle is the most famous dive site around Koh Tao and 40 miles, two hours boat drive away from Koh Samui. The dive site starts 14 meters under the surface and comprises of one huge pinnacle and a series of smaller pinnacles running in north south axis by a maximum depth to 40 meters.

The entire top of the pinnacle is carpeted in Magnificent Anemones, where Pink Anemone fish, crabs, shrimps and Scorpion fish can be seen. In the south is a smaller pinnacle known as Barracuda rock and as this name say, you can find often huge schools of barracuda here, as same as resting Giant Groupers.

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Southwest & Sail Rock

boat tao

Wednesdays - 2 dives

The Southwest Pinnacle is a circular site of seven pinnacles which have the shape of mountains and a lot of granite blocks between. From Koh Samui we need a bit longer than one hour to arrive at this dive site. The biggest pinnacle starts in five meters, the bottom line is by 28 meters.

The underwater boulders are home of great marine life such as Bat fish, Barracuda, Potato grouper, huge schools of Big Eyed Jacks, Trevally, Chevron and Giant Barracuda and King Mackerels. You will be diving amongst swirling schools of Rabbitfish, Snapper and Fusiliers.

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

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Sail Rock Pure Magic

sail rock

Fridays - 2 dives

Sail Rock is on of the best sites for scuba diving from Koh Samui. Whale sharks can be spotted at Sail Rock. At Sail Rock we can experience good diving conditions all year around.

Two dives at Sail Rock in one day! MAGIC! Sail Rock sits 15 m above and 35 m below the surface as a single rock formation in the middle of the ocean. Down in the deep you can see schools of barracudas and huge groupers. Shallower parts of the reef are covered with anemones surrounded by thousands and thousands of fishes.

Sail Rock is famous for its natural underwater chimney swim through which divers can experience from inside.

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Tao Island Our Bestseller


Tue, Thu and Sat - 2 dives

The island of Koh Tao is world famous for best scuba diving in the Gulf of Thailand. Calypso Diving is offering long and relaxed dives in quiet bays at this tropical island. Cosy warm tropical bays are perfect for scuba divers of all levels. The dive sites include for example Japanese Gardens, Mango Bay, Hin Wong Bay, Lighthouse Bay or Ao Leuk.

We are guiding you on every step of your way above and below the water surface. On this tour with Calypso you can go for interesting fun diving itself, as well as for diving courses to enhance your diving skills. If you are just at the very beginning of your diving career or it has been a while since your last dive, this is a perfect tour to start with. This Koh Tao tour takes you down to depths of 12 to 18 meters.

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Angthong Marine Park


Sundays - 2 dives

The Angthong Marine National Park with its 42 islands is the most visited group of islands in the Gulf of Thailand.

A 60-minutes boat ride takes us from Koh Samui to the north of the marine park, to the islands of Koh Yippon and Koh Wau. The ocean is some 20 meters deep around these two islands.

As the shallows of the reef start at 2 meters, these two islands are a great choice for experienced divers and beginners alike. After two dives at those islands we’ll be cruising across the marine park towards south, directly into the heart of this breathtaking island landscape.


The upcoming tours are from 15.7.2018 to 30.09.2018

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Refresher with 2 dives

koh samui diving refresher

Tue, Thu, Sat and Sunday

You haven’t been in the water for quite a while and are not quite sure any more, how this inflator thing works or how to maintain proper buoyancy underwater?

We has the right program for you. – A refresher course that brings you back to a solid level of mastering your abilities.

This refresher program can be attended on all days of the week. We recommend to join us on one of our Koh Tao tours on Tuesdays, Thursdays Saturdays or Sunday as on those days diving takes place at shallow bays with calm water conditions. – Perfect for those who haven’t dived in a while.

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Snorkeling Tours and Try Dives

Snorkeling Koh Tao


Tue, Thu and Sat

At Koh Tao - well known as a top spot for scuba divers - also snorkelers get the best marine life in the Gulf of Thailand to see. So many sheltered bays, that make for pleasant snorkeling conditions are waiting to be explored with just a mask and a snorkel.

For those snorkelling at a relaxed pace, especially the shallows are full with marine life: anemones, parrot fish, giant clams and many others can be spotted around coral gardens and superb underwater landscapes. - So fascinating, they’ve named one of them the “Japanese Garden”.

Snorkeling details »

Marine National Park



The Ang Thong Marine National Park is the perfect combination for those who’d like to experience interesting tropical reefs and breathtaking island landscapes in just one day. It takes us just an hour to get you right in the middle of this natural wonder.

In the northern part of the marine park we’re stopping at two appealing snorkelling spots - Koh Wau and Koh Yippon. Both offering a great marine life experience.


The upcoming tours are from 15.7.2018 to 30.09.2018

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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 a scuba regulator? Then the Discover Scuba Diving (DSD) program is the right thing for you.

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

Joining one of our day trips (discover scuba is possible on any day of the week) you can do two dives down to our colourful reefs in our area. On your very first dive, there will be a bit of training involved. Then on the second dive are just enjoying the underwater beauty.

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PADI Dive Courses

Scuba Diver


The PADI Scuba Diver represents the “small” 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 program first and another day tour on the second day.

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Open Water Diver


This is your Internationally recognised license for diving down to up to 18 meters. The PADI Open Water Diver is the “classic” scuba 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 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

On the left you can see our dive catamaran Anatta. On the right our catamaran yacht Mintra.
Each boat is powered by 900 HP engines which allows cruising at speeds up to 26 knots. That makes for fast and comfortable rides to all dive sites. The catamaran hull makes for a super smooth ride. The boats have the highest safety standards. This is the top level of comfort you can experience when diving from Koh Samui.


M Fau Calypso Diving LTD. Part.

27/5 Moo 3, Chaweng Beach Road,
Bophut, Koh Samui, Suratthani,
Thailand, 84320

Phone/Fax: +66 (0) 77 422 437
Phone: +66 (0) 77 413 249
English/Thai: +66 (0) 81 891 54 18
English/German: +66 (0) 89 871 94 32
WhatsApp / SMS / Line: +66898719432


© Calypso 1998 - 2018


marker scuba diving center koh samuiOur Office Location

Monday to Sunday:
10:00am to 08:00pm
Closed on:
1. January / 13. April

marker scuba diving center koh samuiPier / Check-In Location

Koh Samui Pickup


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