Similan Liveabord - South Siam

The MV Somboon 4 and her sister ship MV Somboon 3 are unique amongst Phuket liveaboards. They have no fixed schedule, allowing you the flexibility to hop on and off at your convenience making them the easiest boats to plan your liveaboard adventure around.

They are both very large vessels with plenty of space. During the busy season they can be feel a little crowded on the middle 2 dives of the day when the day trip divers arrive but you can smile and wave them on there way at around 3:30pm. The dive deck is huge and the outside shaded area comfortably seats the maximum of 28 guests and there’s always space on the generous sun deck. MV Somboon 4 has 3d/2n trips heading to the Similan Islands, Koh Bon, Richelieu Rock and Koh Tachai every Wednesdays and Sundays giving you one of the best chances of seeing some big creatures at these fantastic dive sites.


To dive Similan Islands, Koh Bon, Koh Tachai and Richelieu Rock in a 3 day 2 night trip you will need to depart on a Tuesday, Wednesday, Saturday or Sunday.

Similan – Koh-Bon trip

Similan, Koh Bon 

 Number of dives Price (THB) for diverPark Fee for divers Price (THB) for non-diverPark Fee for non divers
1 day 25 600 7003 600500
 2 days / 1 night 713 900 90010 900 500
 3 days / 2 nights 1118 9001 10014 900 500

Similan - Richelieu Rock

Similan, Koh Bon, Tachai, Richelieu Rock 

 Number of divesPrice (THB) for diverPark Fee for diversPrice (THB) for non-diverPark Fee for non divers
3 days / 2 nights 1122 900 1 800 17 900 500 
4 days / 3 nights1526 9002 00020 900500
5 days / 4 nights1930 9002 20023 900500
6 days / 5 nights2334 9002 40026 900500
7 days / 6 nights2738 9002 60029 900500

Price include:

  • Hotel pick up and drop off (Kata, Karon, Patong)
  • Accommodation on boat
  • Food, water, fruits, tea, coffee
  • Tanks, weights, belts
  • Dive guide (English speaking)

Price does not include:

  • Beer and beverages
  • Rental Diving equipment

Similan Islands National Marine Park entrance fees are 500 THB + 200 THB / day per diver (to be paid on the spot)

  • Private dive guide: 2,500 THB / day (min 2 persons)

It is recommended to bring: Towel, sun block, hat, sunglasses, diver’s license and logbook, diver’s insurance.

Rental equipment (per day) 

The list of itemsPrice (THB)
Complete set of equipment (regulator, BCD, suit, mask, fins, snorkel)500
Mask, fins, snorkel100

The Cabins

All of the cabins have air-conditioning, reading lights, storage cabinets. None are en-suite but there are 6 bathrooms for guests to share as well as 2 showers on the dive deck.

  • 4 x Double bed cabins
  • 10 x Twin bed cabins

The Food

Simple but delicious Thai food served buffet style outside on the shaded mid deck area, toast and biscuits are always available between meals. Special dietary requirements are easily catered for but please inform us at time of booking.


Safety Features

First aid box, oxygen, dinghy, fire extinguishers & life jackets, GPS, depth sounder, mobile phone & radio

Boat Details

  • Length : 28 metres

  • Width : 6.5 metres

  • Cabins : 10 twin cabins and 4 double bed cabins

  • Max: 28 guests sleeping

  • Bathrooms : 6

  • Compressors: 2

  • Saloon and Sun deck

  • Emergency Oxygen

  • Two fresh water showers at the dive platform

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