We Wish You Were Here

Big Blue Diving Khao Lak

Similan Liveaboard Experts

Similan Liveaboard
Similan Diving Day Trips
Tomorrow's Dive Sites

7 December 2024

Richelieu Rock

Sunday Dive Sites

8 December 2024

Surin Islands and Richelieu Rock

Big Blue Diving Khao Lak

Big Blue Diving has been offering diving in Thailand for over 20 years and in Khao Lak since 2003.
 Khao Lak is the perfect departure point for the Similan and Surin Islands. 
The clear waters of the Andaman Sea typically provide great visibility and a huge diversity of marine life.

Our Similan liveaboard and Similan day trips offer diving at both the Simian and Surin Islands including the amazing Koh Bon, Koh Tachai and Richelieu Rock commonly regarded as Thailand’s best dive site.

Our Similan Liveaboard the Blue Dolphin

Our Similan Liveaboard

MV Blue Dolphin

A Similan Liveaboard allows you to do the most amount of diving in the shortest possible time, without ever feeling rushed. The MV Blue Dolphin offers 14 dives on our Similan 4 day cruise. Staff are professional and experienced. We are also a CCR and side-mount friendly boat with set up space and guides available for either style of diving.

Enjoy the spacious relaxation areas around the boat plus delicious Thai and international cuisine at an unbeatable price.

Our Similan Liveaboard

Dive with Us on The Blue Dolphin

Our Similan liveaboard trips are 4 days and 4 nights. The perfect length of time to see all the best dive sites that the Similan Islands and world famous Richelieu Rock have to offer.

4 days / 4 nights from 26,800 THB

With Big Blue’s legendary service there’s no better way to see the Similan Islands and Richelieu Rock

Up-Coming Similan Liveaboard Departures

4D/4N Similans/Richelieu

14 dives

4D/4N Similans/Richelieu

14 dives

4D/4N Similans/Richelieu

14 dives

4D/4N Similans/Richelieu

14 dives

4D/4N Similans/Richelieu

14 dives

Similan Liveaboard Features

The saloon on our Similan liveaboard
Air-conditioned Recreational Areas
Similan liveaboard sun deck
Part Shaded Sun Deck For Relaxing
camera table and storage
Professional Camera Set-up Area
Dining area on our Similan liveaboard
Spacious Outdoor Dining Area

Our Day Trip Speedboat

Dive with Us on the Wave Rider

Our daily schedule allows you to dive the best the West Coast has to offer, plus we dive at the world famous Richelieu Rock four days a week. This is the fastest way to see the best of the Similan and Surin National Parks

Day Trip Diving

To The Similans and Richelieu Rock

Big Blue Diving Khao Lak now has more day trip diving options than ever!!

All our diving day trips are two dives. Depending on dive site it is a journey of only 50 to 80 minutes. Enjoy a delicious home-cooked Thai style buffet lunch after the first dive and be back on land in time for sunset on the beach.
Tomorrow's Dive Sites

7 December 2024

Richelieu Rock

Sunday Dive Sites

8 December 2024

Surin Islands and Richelieu Rock

Need anything for your dive trip?

Big Blue Shop

Why not order now and we will have it waiting for you on your arrival on-board the MV Blue Dolphin.

The Big Blue Dive Equipment Shop

Coming to dive with us? 
Need anything for your trip?

Why not order now and we will have it waiting for you when you arrive in Khao Lak

Our store has some of the worlds best brands available at great prices.

When booking a trip with us, you will qualify for some even better deals too.

Live and Let Dive
Big Blue Diving Khao Lak

Our Similan Liveaboard Trip Reports

Thank you guys for joining us on our liveaboard trip 008 of our 2024 – 2025 season. It was a pleasure to have you all on board. Thank you also for being so understanding of the conditions and bearing with us.
Trip 7 was a bit of a similan classic. Super viz, gentle currents and plenty of life from the get go. Koh Bon and Koh Tachai being the highlights of the Similan part of our tour. The Batfish schools at the later mentioned sites were really inquisitive, but the highlight for me was the schooling barracuda.
I’m back on our Similan liveaboard for our sixth trip of the season, my first with some decent weather. The Similans are looking glorious, bathed in sunshine, the turquoise water gleaming