Boat diving at Sail Rock – Anthong – Koh Tao

฿ 3,200฿ 6,200

  • EUR: € 81 - € 156

Choose to dive the best dive sites of the gulf of Thailand. The idea is to discover different underwater landscapes and a biodiversity specific at every area: Anthong, Sail Rock and Koh Tao.

1. You can dive at Sail Rock with whale sharks, the biggest fish of our planet, on a regularly basis all year round. They are always in the surroundings. We can dive with them especially around full moon time. This trip match with all level of divers. When we go to Samran pinnacle its only with advanced divers.

2. Discover the wreck Sattakut-742 and the well known pinnacles of Koh Tao. We can as well do 1 dive at Sail Rock and then 1 dive at Koh Tao. This trip is more for advanced divers. Ask us if you want to do the Advanced course.

3. Enjoy the beauty, the diversity and quantity of the north of Anthong National Park. There is usually no boat going there so its its a pleasure to be the only divers on the dive sites.

The prices includes everything you need: Breakfast and lunch (on the boat), dives lasting around 1h each, all your equipment, 1 guide speaking your language and a transfer from and to your hotel.

From 4  fun divers, we can organise trips to those destinations with our speed boat. Just ask us for more details.


If you need a transportation to the harbour and back to your hotel it will be 200 Thb in extra. To be paid at Blue Horizon Diving.

If you need a diving insurance that covers the decompression chamber and any other costs caused by an accident that may happen to you on the way to the dive site or during the dive, we offer one which is 250 Thb for all your dives. To be paid at Blue Horizon Diving.


Pay a 30% deposit per item

Clear dates

Pre requisites

Pre requisites: Every divers, from beginners to advanced levels, can dive at Sail Rock. We will stay at the depth matching with your dive certification. A minimum of an Open Water Diver is required. If you are not certified you can dive the same dive sites but you have to do a Try Scuba Diving or an Open Water Diver course.

Whale sharks are usually staying close from the surface. Hence even snorkelers can swim with them. So your non divers friends can get on the boat trip with you.

Schedules - Program

Schedules for boat diving: The diving boat leaves from Chaloklum pier at 8am and comes back at 2 pm (from Sail Rock) or around 4pm (from Anthong or Koh Tao).

The price includes breakfast and lunch, 2 dives lasting around 1h, dive gear, 1 guide speaking your language and a transfer from your hotel .

Keep a memory of your day

Keep some memories of your amazing experience of diving or snorkeling day. Your instructor can take professional underwater videos and pictures. We will send you all the files by “we transfer” afterwards. The price is 800 Thb for 1 person or 1000 Thb for 2 people or 1200 for 3 to 4 people.

Infos about dive sites

You will find all the details on our page describing the dive sites: READ HERE


Southwest Pinnacle, south west of Koh tao is a deep dive site.

Reaching 30m, Southwest Pinnacle consists of a series of steep pinnacles rising from the sandy sea bed. Zigzagging between pinnacles give you the filling to be in a little maze.


Chumphon pinnacle, north west of Koh Tao is made up from one huge granite pinnacle and a series of smaller ones.

The top of the pinnacle is at 14m and drop off to 36 meters deep. It is covered with anemones. You will dive with thousands of barracudas, trevallis and bat fish.

SAIL ROCK pinnacles (Between Koh Tao & Koh Phangan):

is divided in 2 pinnacles: The rock itself that is going out of the water and east pinnacle that starts at 19 meters deep about 50 meters away from Sai Rock. The main rock has an amazing chimney. You can go inside using one of the 3 entrances which are at 5, 13 and 19 meters deep.

With advanced divers, we go to explore East pinacle which is a second large rock – that doesn’t reach the surface – on the south east of the dive site that drops down into the sand at more than 30 metres. We can go to the artificial reef made with concrete blocks which is around 25 meters deep.

SAMRAN PINNACLE (next to Sail Rock)

Samran Pinnacle, between Sail Rock and Koh Tao, is a huge rock that starts at 9m depth and drops down to 28m, you can go slightly deeper if you follow the other rock pattern along the bottom.

Around the rock you can spot schools of barracudas, fusiliers and trevalli’s. Encounters with a whale sharks are also possible. Samran Pinnacle is only for advanced divers.

WRECK Sattakut-742 (Koh Tao):

The wreck named “HTMS (His Thai Majesty Ship) Sattakut-742” voluntarily sank on June 18, 2011 near the west coast of Koh Tao. At 158 feet long (about 48 meters), the Sattakut now rests at a depth of 30 meters (30 meters at the stern and 27 meters for the bow), which reserves its exploration to experienced divers (Advanced Open Water certification).

KOH WAO Bay (Anthong):

Koh Woa Bay is a lovely shallow dive site offering perfect training conditions and really long dives opportunity. This dive site displays beautiful anemone gardens that stretch as far as the eyes can see.

All the usual companions are there. A well balanced dive site is Koh Wao for example.

KOH YIPPON (Anthong):

The dive site of Koh Yippon is a huge island when it comes to diving. You can do many dives there without diving the same spot twice.

This dive site has a great diversity of fish and corals, beautiful Gorgonian sea fans, blue spotted sting rays and occasionally resident turtles can be spotted.  Koh Yippon offer some swim-through, which makes the dive even more exciting!

About Whale sharks

Take your chance to dive with a WHALE SHARK, the biggest fish on this planet!!

It is impressive and very safe as the whale shark does not have big teeth and behaves smoothly.

They can be between 3 up to 7 meters at this dive site. The adults, who can reach 15 meters long or more, usually stay away from the divers.

Whale sharks have a life span of 70 to 100 years. We have to respect them and never touch them as that can strengthen their lives in generating skin diseases.

This gentle giant is majestic, very friendly and are looking for the company of divers. As they will most likely swim around the divers, no need to rush! Just stay still and admire the creature. Its unique.

The bigger fish of the planet can be even seen by snorkelers as most of the time whale sharks are swimming close to the surface.

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