Somboon 4 like her sister boat Somboon 3 offers highly flexible liveaboard trips to the Similan Islands as well as visiting the more remote dive site Richelieu Rock. This large comfortable boat sleeps a maximum of 28 guests in a mixture of bunk, twin and double bed cabins. Guests can board Somboon 4 any day of the week except Wednesday's and Sunday's, as the boat is visiting Koh Bon, Koh Tachai and Richelieu Rock on these days.

Length: 28 meters / 92 foot
Beam: 6.5 meters / 21 foot
Cruise: 12 knots
Divers: 28

Somboon 4 is a relatively new boat and has been very well designed to offer as much comfort as possible to the divers onboard. The large dive deck and platform gives divers plenty of room to kit up before the dive as well as ample space to store their equipment after the dives. The flexibility of this boat make it a great option for those of you who want to see the best dive sites of the Similan Islands, but don't want to commit to a 4 or 5 day trip.

Cabin and Bathroom Facilities.
There are 10 Twin Share cabins and 4 double bed cabins.  

Cabin Facilities:

• Air Conditioning
• Bedding and Blankets
• Reading Lights

Somboon 4 has 6 bathrooms onboard, all with hot water showers, sinks, mirrors and complementary shower gel and shampoo. There are also two fresh water showers located at the rear of the dive deck for you to wash off after the dive.

Facilities and Food

Crew

Somboon 4 prides itself on its crew and on every trip where will be a minimum of:

Tour Leader
5 Divemaster’s
Captain
Cook
Engineer
3 Deck Hand's
Hostess

Large spacious Dive Deck
10m² Dive Platform
35m² Sun Deck
Air conditioned Saloon
TV, DVD, Stereo
Extensive Library, containing Fish Guides, Dive Magazines and general titles.
6 Toilets
8 Showers
Small Dingy - Used to pick up divers and also take people on to the islands to explore

All Meals are served on the upper deck and are served as a buffet.

Western Breakfasts.

Thai and International Cuisine for Lunch and Dinner.

Fresh Fruits available all day.

Water, Tea, Coffee, Milk Shakes and Iced Tea available free of charge.

Toast, biscuits, sweets and cakes are also provided throughout the day.

Soft Drinks and Beer is also available on board for a small charge.

As with all liveaboard's the food is of a very high standard, and if there is one thing for certain, it is that you will not go hungry.

Note: If you have any specific dietary requirements, please let us know when booking.

To visit Richelieu Rock you need to do 3 or more days on South Siam 4, spanning a Wednesday or Sunday. For example, join the boat on Monday or Tuesday and get off on Thursday, Friday or Saturday or get off the following Monday or Tuesday to visit Richelieu Rock and Koh Tachai twice.

• Built in year 2004
• Size — 28m x 6.5m
• Draft 2.5 meters
• Top speed — 12 knots
• Cruising speed — 10 knots
• 2 x 420 Hino engines
• 2 x 50 KW generators
• 2 x Dive tank compressors
• Electricity 220V — 24 hours per day
• Fresh Water Maker
• Environmental waste storage tank

• Satellite phone
• Mobile phone
• GPS
• VHF Radio
• SSB Radio
• Depth sounder
• Radar
• EPIRB
• CB Radio, 24h contact with NAVY
• O2 tank + O2 instructor provider on board
• MFA Kit + Emergency First Response instructors on board
• Two life rafts complete with jackets throughout
• Affiliated member with the Hyperbaric Chamber in Phuket
• Fire extinguishers

Floor Plan

                                                                                                                                                                      









1. Dining Area
2. Saloon
3. Staff Cabins
4. Wheel House
5. Dive Platform
6. Dive Deck
7. Toilets and Showers
8. Kitchen
9. Bunk Bed Cabins
10. Twin Bed Cabins
11. Double Bed Cabins
12. Dive Compressors
13. Generators
14. Engines
15. Store Room
16. Crew Cabins