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Similan Islands Day Trip Diving : Including Richelieu Rock, Koh Tachai & Koh Bon

Similan Islands diving day trips are the perfect way to enjoy the best scuba diving in Thailand, without sacrificing the comfort of your Khao Lak hotel or resort. We say ‘Khao Lak hotel or resort’ because it is not practical to join a Similans day trip if you’re staying in Phuket or Ranong the night before. All of our Similan diving day trips are similar in as much as they depart from Khao Lak in the morning and offer two scuba dives at some wonderful diving locations in clear tropical seas, surrounded by lots of fish and other exciting marine life. Also, the prices are quite similar, even from the least to most expensive. However, all of our diving day trips at the Similan Islands have something different. There are faster boats, more comfort-orientated boats, boats which focus only on the more extreme dive sites, and boats which take divers out to dive from larger boats that are stationed out at sea.

Jump to: Similan Islands Day Trip Diving Boats

New in 2018
Only Visits Best Dive Sites
Large, Smooth & Fast
Richelieu Rock
blue-marlin-daytrip-diving-boatjpg

Brand new in 2018, Blue Marlin is a large speedboat that visits Thailand's top 3 dive sites. Richelieu Rock, Koh Tachai & Koh Bon. The boat was specifically designed and built for this purpose and can easily accommodate 20 guests and 5 dive staff.

It departs from and returns to Baan Nam Khem Pier in northern Khao Lak to quickly reach the dive sites.

Departs from: Khao Lak
No. of guests: 25

Fast journeys
Dive from & have lunch on a larger boat
Richelieu Rock Twice Per Week
The best of both worlds
nawanoppa-similan-dive-speed-boat

Nawanoppa is a day trip boat with a difference. Divers only travel on the speedboat, and dive from a liveaboard boat, which has a large platform and space to move around. In addition, the surface interval and lunch are much more relaxing on the large boat which stays out at sea.

Departs from: Khao Lak
No. of guests: 20

Very Well Organised
Lunch on the beach
Best-Quality Rental Gear
New & Well Designed
kalamang-d18

New for 2021, Kalamang is a very well-run speedboat spefically designed and built for scuba diving to the best dive sites in Thailand. Everything runs as smooth as clockwork, and the way the boat is set up means that it's safe, smooth, fast and comfortable.

Departs from: Khao Lak
No. of guests: 25
DestinationsDurationPer diver
Boat Schedule and prices coming soon

Average Rating 9.1/10 Based on 31 Diver Reviews for Liveaboards - Similan Islands Day Trip Diving

Nawanoppa Nawanoppa
NIC
Canadian
Review score: 10/10
Dived: 19 Apr 2023
Thank you for the kind service and laughter with lots of smiles!...
Blue Marlin Blue Marlin
Ale
Italian
Review score: 9/10
Dived: 01 Mar 2023
Day trip well organized, nice experience at the Richelieu rock. Food was good, they include a soft drink of your choice as well and fresh water along...
Blue Marlin Blue Marlin
Randall
British
Review score: 9/10
Dived: 21 Feb 2023
Great team , very professional , lots of attention to detail - especially security . All in all a good experience . You also get the best price when b...
Blue Dolphin
Blue Dolphin
Blue Dolphin
Dimitra Miliordou
Greek
Review score: 7/10
Dived: 27 Feb 2020
Our experience with Blue Dolphin was nice, however the boat was pretty small for 15 divers in total. The equipment had already been set up in advance,...
MC Sundancer
MC Sundancer
MC Sundancer
Dimitra Miliordou
Greek
Review score: 8/10
Dived: 25 Feb 2020
Great experience, we saw two giant Manta rays in our last dive, which made us ecstatic! Friendly and attentive staff, spacious and well-equipped boat....
Blue Dolphin
Blue Dolphin
Blue Dolphin
Eric
Thai
Review score: 5/10
Dived: 04 Jan 2020
Trip to Richelieu Rock. For me the boat is not comfortable, too little room for each guest, no place for material. Instructor and boat crew were fine,...
MV Nangnuan
MV Nangnuan
MV Nangnuan
Isabelle
Netherlander
Review score: 10/10
Dived: 08 Dec 2019
Easy booking process, nice boat, friendly instructors....
Blue Dolphin
Blue Dolphin
Blue Dolphin
Christine
American
Review score: 10/10
Dived: 08 Dec 2019
Communication was extremely easy. All pre-dive forms and information was completed online, including type/size of rental gear needed if any. There w...
Blue Marlin Blue Marlin
Yoyorun
French
Review score: 9/10
Dived: 30 Oct 2019
Highly Professional organization. Blindly recommended...
Nemo 2
Nemo 2
Nemo 2
Jan Sørensen
Danish
Review score: 8/10
Dived: 19 Apr 2019
A very good and serios diverteam. And the team om the both also very kind. We felt all very well and safe on the trip....
Blue Marlin Blue Marlin
Yoram
Israeli
Review score: 10/10
Dived: 17 Apr 2019
We had excelent dives. Jamie was very helpfull all the way....
Nemo 2
Nemo 2
Nemo 2
Christopher
American
Review score: 10/10
Dived: 04 Apr 2019
I thoroughly enjoyed not just the dive through nemo, but the holistic experience. The crew was extremely adept, and it was easy to tell our safety was...
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