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MV Nam Sai

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Boat Overview

MV Nam Sai Overview

Nam Sai diving day trips to Similans
Type: Day trip
Departs from: Khao Lak.
No. of guests: 50

Currently not running day trips, but this could change at any time. Please contact us for comparable alternative Similan diving day trips.

Diving on Nam Sai offers the best of both worlds: day trip convenience and the comfort and luxury of a large boat to relax on. At 25m in length, Bam Sai is the size of many liveaboard diving boats, but she goes out to the Similans and back almost every day. Able to cruise at 12 knots, she can reach the dive sites in a very comfortable and relaxing three hours. Similan Islands diving day trips don’t get much more comfortable than on Nam Sai, and the prices are extremely reasonable. There is plenty of space to move around, sit down and eat or relax, and a large dive platform for gearing up. 

MV-Nam-Sai-DivedeckNam Sai is a scuba diving day trip boat with a difference. She has three decks and is the size of a liveaboard boat. However, she just goes out to the Similan Islands or Koh Bon and back nearly every day of the week. For those who don’t want to be racing to the dive sites on a bouncy speedboat, Nam Sai is the perfect balance of comfort and convenience. She has plenty of places for guests to sunbathe, eat and drink, watch tv, socialize, or find some private time. The diving deck is massive, meaning that there’s more than enough space for the divers to gear up and there are lots of areas to receive dive briefings. There’s a bar area and plenty of tables and chairs. A western buffet ensures that every taste and appetite is taken care of, including children and vegetarians (on request). There are fresh water showers, an air-conditioned lounge and free fruit and snacks all day long. Guests diving with the boat’s Divemaster guides are supplied with a dive computer for free, and snorkellers get free equipment and a professional snorkel guide. With two dinghies to take care of picking up divers and transporting snorkellers to the best spots, everything is well organised and convenient. While some may think that a speedboat is the best option for Similan Islands day trips, they should consider that the extra time spent on Nam Sai flies by due to the comfort and facilities on board.

Genuine MV Nam Sai Reviews

Read real reviews from people who have dived with MV Nam Sai
NEZ Sylvain  MV Dolphin Queen
NEZ Sylvain
Divers Nationality: French
Dive date: 17 March 2026
Boat rating: 9/10
Small, simple boat dedicated solely to diving. My favorite company. Thank you to the entire team for this excellent trip.
Sullivan MV Koon9
Sullivan
Divers Nationality: French
Dive date: 16 March 2026
Boat rating: 10/10
This was my first time doing a liveaboard and I was a bit unsure whether it would be for me. I spent 3 days on the MV Koon9 and I absolutely loved it. The whole staff was super attentive and helpful, the boat never feel too crowded and the food and f...read more
Jessica T MV Koon9
Jessica T
Divers Nationality: American
Dive date: 15 March 2026
Boat rating: 10/10
Great experience! SUPER organized operation. Guests that had tried several boats in the area said this one was definitely most organized. Delicious plentiful food, super helpful staff (princess diving where they do everything for you except hang up y...read more
Tom Cross MV Emperor Leo
Tom Cross
Divers Nationality: Australian
Dive date: 14 March 2026
Boat rating: 10/10
Excellent staff and service. Our DM the best I have had . Michael .. excellent management and coordination Only minor criticism is the dive tender a bit crowded … spacing could be improved. I will be back
Linda MV Emperor Leo
Linda
Divers Nationality: New Zealander
Dive date: 14 March 2026
Boat rating: 8/10
I had a fabulous trip on the Emperor Leo LOB. The facilities on the boat are excellent, food was great and the diving had some very spectacular moments A special mention to my dive Guide Koobert who was exceptional
David MV Manta Queen 5
David
Divers Nationality: Austrian
Dive date: 14 March 2026
Boat rating: 10/10
We had a very good time on Manta Queen 5! Diveguides, boat staff, equipment, food. Everything was perfect! We were lucky to be a very small group of 8 divers, which was extra nice! If we would have seen a whaleshark or Manta it would have been an 11...read more
pascal MV Sawasdee Fasai
pascal
Divers Nationality: French
Dive date: 13 March 2026
Boat rating: 9/10
une croisière très bien organisée, le bateau est superbe, très confortable, le personnel à bord est très gentil avec les plongeurs, la nourriture est bonne et le plus important : les 14 plongées sont vraiment superbes
Snapper MV Manta Queen 3
Snapper
Divers Nationality: British
Dive date: 13 March 2026
Boat rating: 8/10
Great fun, the crew was much better than last year, and the food was better too, but the pillows in the cabin need replacing a little more often.
Ventan Similan Quest
Ventan
Divers Nationality: Polish
Dive date: 12 March 2026
Boat rating: 9/10
Great guides and fantastic dive spots! The twin cabin was spacious, cool, and super comfortable. The food was okay - nothing more and nothing less than I expected. I would totally recommend it!
Zoe
Divers Nationality: Irish
Dive date: 11 March 2026
Boat rating: 10/10
We had the best time aboard Koon9. This was our first live aboard so we didn’t know what to expect but we were blown away! The dive boat is huge - bedrooms and ensuit are a good size; the food is some of the best we have had in Thailand and include...read more
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Nam Sai diving day trips to Similans
MV Nam Sai
Type: Liveaboard
Departs from: Khao Lak.
No. of guests: 50
From: Ask
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