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............... Dive Site Profile ..............
     Richelieu Rock
40m - 1m depths, Avg temp - 28*
With plenty of macro-life like Ghost Pipefish and Harlequin Shrimps, and several WhaleShark visits each season, it's easy to see why Richelieu Rock is always voted "Best Divesite in Thailand".

Located 30 miles north of the Similans, Big Blue makes day trips to Richelieu 3 times a week.

.......................Profile........... ........
  The Similan Islands
Just 60km west of Khao Lak, the Similan Islands are spectacular chain of nine granite islands, each with tropical jungle, brilliant white sandy beaches and surrounded by warm, crystal clear water which is teeming with colorful marine life and stunning corals. Calm, protected bays make it great for snorkeling too!

Big Blue Koh Tao
Can't make it to Khao Lak for the Similan season (October to May)? Are you looking for lots of diving on a limited budget? If so check out Big Blue Koh Tao.

Big Blue on Sairee Beach, Koh Tao

Day Trips to the Best Dive Sites

Dive Thailand's best dive sites in style on the nicest speedboat out of Khao Lak: The Similan Islands (including Koh Bon, Koh Tachai) and our specialty; Richelieu Rock, arguably the best dive site in Thailand!

The Blue Dolphin, our brand new 43 foot triple engine (225HP Honda 4 stroke) speedboat, is a comfortable and very fast (only 1hr 10min to the furthest dive sites!) way to travel ensuring a relaxed day. You can sit in the shade or catch some on the front sundeck while keeping an eye out for real dolphins en route to the islands.

Fly with the Manta Ray's on Koh Bon every Monday and Friday. Explore macro heaven with seahorses, ornate ghost pipefish, harlequin shrimps etc and the best chance for Whaleshark on Richelieu Rock every Tuesday, Thursday and Sunday. Experience the rich and interesting reef and boulder sites around Similan Islands every Wednesday and Saturday (for your convenience we also go there every day of the week with our partner Speedboat).

 

The Similan Islands National Marine Park lies directly west, making Khao Lak a great starting point for your trip. Each island is surrounded by thriving coral reef, starting in the shallows just a few metres from the beach, making snorkeling easy and safe for all. Meanwhile divers have access to a wide variety of deeper sites, from rocky canyons and swim through’s to stunning coral gardens. Each island also has view points and jungle walks for the active and glorious beaches for those who want to take life easy.

A little north of Similan Islands, but still part of the same marine park lies Koh Bon and Koh Tachai, stand alone islands with fantastic diving opportunies. Koh Bon features a long sloping reef with cleaning stations favored by large Manta Ray's that fly in for their spa treatments to the joy of us divers. On the south side of Koh Tachai lies a submerged pinnacle with great coral, resident leopard sharks and dramatic dive scenery.

Further north, in the Surin Marine Park, lies Richelieu Rock - named by the famous Jacques Cousteau - arguably the best dive site in Thailand. It’s a dramatic series of rocks in a rough horseshoe shape that features the best chance for whaleshark and stunning macro-life with ornate ghost pipefish, tigertail seahorse, harlequin shrimp and many other goodies, the macro photographers "wet" dream. Frequent schools of barracuda, mating cuttlefish and various other pelagics round off a site that never ceases to amaze.

On the Similan trips, snorkelers and non-divers will be dropped off with a guide on one of the pristine beaches, while the divers explore the deeper sites nearby. We will reunite for lunch on board before moving to another island for an early afternoon dive, swim, sunbathe or walk - whichever activity you have chosen.

We’ll have our lunch together during the surface interval either on the beach or onboard. After the second dive, we offer some refreshing fruits on the return journey home.

Day trips include:

  • Pick up from your hotel, transport to the pier and back
  • Lunch and fruits
  • Drinking water and soft drinks
  • National Marine Park entrance fee
  • Tanks and weights for the divers
  • Dive or snorkel guide
  • Lots of fun!

 

 

 

The Blue Dolphin Speedboat

Length: 43ft or 13.1 meters
Engines: 3x 225HP Honda 4 stroke (silent running & no smelly fumes)
Speed: Cruising speed 30-32 knots. Top speed 40+ knots.
Between 50 and 80 minutes run time to dive sites in normal sea conditions.
Capacity: 16 divers or 24 non-divers
Features: GPS, Radio, Toilet, Outdoor Shower, Emergency Oxygen, First Aid Kit,
State of the art Tank Rack (holds 41 tanks).
Pier: Ban Namkhem, ca 20 minutes north of Khao Lak

 

 
Weekly Itinerary

Weekly Itinerary from November 10th to December 14th.

The Blue Dolphin Alternative Speedboat*
Monday Koh Tachai & Koh Bon Similan Islands
Tuesday
Richelieu Rock
Similan Islands
Wednesday
Similan Islands
Similan Islands
Thursday Richelieu Rock
Similan Islands
Friday Koh Bon
Similan Islands
Saturday Richelieu Rock Similan Islands
Sunday Similan Islands
Similan Islands

Please be advised that weather in November can be windy, making reaching Richelieu Rock impossible with any boat. It is possible we may change our schedules based on wind reports. We always try to let our customers know as far in advance as possible.

Weekly Itinerary from December 15th to March 14th.

The Blue Dolphin Big Blue speedboat #2
Monday Richelieu Rock Similan Islands
Tuesday
Richelieu Rock
Similan Islands
Wednesday
Koh Bon
Similan Islands
Thursday Richelieu Rock
Similan Islands
Friday Koh Tachai
Similan Islands
Saturday Richelieu Rock Similan Islands
Sunday Koh Tachai & Koh Bon Similan Islands

Weekly Itinerary from March 15th to April 30th.

The Blue Dolphin Alternative Speedboat*
Monday Koh Tachai & Koh Bon Similan Islands
Tuesday
Richelieu Rock
Similan Islands
Wednesday
Similan Islands
Similan Islands
Thursday Richelieu Rock
Similan Islands
Friday Koh Bon
Similan Islands
Saturday Richelieu Rock Similan Islands
Sunday Similan Islands
Similan Islands


* As a service to our customers, in conjunction with our partners we are also able to offer Similan Island Diving and Snorkeling by Speedboat every day of the week, if the Blue Dolphin schedule does not suit you.

 

We also dive the nearby Boon Sung Wreck every day which is just 45 minutes away and offers a great habitat for an abundance of marine life.

 
Pricelist

Snorkeling


1 day Similan 2,900

1 day Similan, Children 4-12 years 1,500


Scuba Diving


1 day Similan Islands (2 dives) - 5,600

1 day Koh Bon (2 dives) - 5,600

1 day Koh Tachai / Koh Bon (2 dives) - 5,800

1 day Richelieu Rock (2 dives) - 6,000

½ day Boon Sung Wreck (2 dives) - 2,800


Equipment Rental


Dive Computer - 250 / day

U/W torch - 150 / day

Digital camera including CD burned - 1,400 / day

 

Discounts


Own equipment - 400 / day

Second trip booked with Big Blue - 5%

Third trip - 10%

Group discount (5+ pax) - 5%

 

 

 

 
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