LIVEABOARD Koh Bon, Tachai, Richelieu Rock 3 days / 2 nights – M/V Marco Polo
LIVEABOARD Koh Bon, Tachai, Richelieu Rock 3 days / 2 nights – M/V Marco Polo
LIVEABOARD Koh Bon, Tachai, Richelieu Rock 3 days / 2 nights – M/V Marco Polo
LIVEABOARD Koh Bon, Tachai, Richelieu Rock 3 days / 2 nights – M/V Marco Polo
LIVEABOARD Koh Bon, Tachai, Richelieu Rock 3 days / 2 nights – M/V Marco Polo
LIVEABOARD Koh Bon, Tachai, Richelieu Rock 3 days / 2 nights – M/V Marco Polo

LIVEABOARD Koh Bon, Tachai, Richelieu Rock 3 days / 2 nights – M/V Marco Polo

Koh Bon & Koh Tachai are two islands located north of the Similan Islands and both islands offer unique underwater sceneries uncomparable with any other Thailand dive sites as well as an incredible amount of life. Koh Bon is known the hot spot for Manta Rays in Thailand.

Richelieu Rock is a horseshoe-shaped pinnacle situated in the open sea about 40km off the mainland. It is listed as one of the top dive sites in the world and it’s without question the best Thailand dive site. The pristine reefs of Richelieu Rock host an overwhelming amount of marine life, anything from large pelagics, predators, schooling fish and more, all the way to macro life such as seahorses, ghost pipefish, nudibranchs and countless more including whale shark time to time.

23 meters long wooden hull liveaboard vessel built in 1998, all cabins and salon refurbished 2020 / 2021. The M/V Marco Polo sleeps 12 guests in 6 double bed ensuite cabins with A/C and panoramic sea view. The large dive deck and spacious sun deck ensure the maximum comfort during the stay. Nitrox is available on all dives.

M/V Marco Polo Technical Specifications:

Length 23 m
Beam 6 m
One Hino Engine 1 X 360 hp
Two Generators 220V
Two Bauer K 14 compressors 2 X 300 plus Enriched Air (Nitrox) available
All cabins complete with 220 volt of Electricity 24 hours a day
All cabins with individual Air-conditioning system
Fresh Water capacity 8000 liters
Fuel capacity 3000 liters
Cruising Speed 9 knots


*Double Ensuite Cabin (890€)
*Non-diver Double Cabin (790€)

To make a reservation, please contact us with the contact form below.

Please note that the cancellation terms of liveaboards are different to other Raya Divers trips and courses.


All activities include

  • Pick up from hotels
  • All boat transportation and life jackets (children sizes available)
  • Use of snorkeling equipment
  • National park fees (if applicable)
  • Lunch, snacks, fruits, drinking water, coffee and tea
  • Guide or instructor services
  • Insurance


Diving Courses and Discover Scuba Diving include

  • Full scuba diving equipment
  • All study materials
  • Certification fees


What is excluded?

  • Soft drinks and alcoholic drinks on all activities
  • Scuba diving equipment on trips for certified divers
  • PADI Membership and Pro materials fees on professional level courses


For everyone

Please do not participate on any activities if feeling ill. In case you have a medical condition that our team should be aware please contact the tour leader.

If you participate for Discover Scuba Diving or Diving Course

Please review the questions below. If you answer YES to any of the questions it doesn't necessarily disqualify you from diving but you must consult a physician prior to participating in the program.

  • Could you be pregnant or are you attempting to become pregnant?
  • Do you regularly take prescription or nonprescription medications? (with the exception of birth control)
  • Are you over 45 years of age and have one or more of the following? • currently smoke a pipe, cigars, or cigarettes • have a high cholesterol level • have a family history of heart attacks or strokes

    Have you ever had or do you currently have . . .
  • Asthma, or wheezing with breathing, or wheezing with exercise?
  • Frequent or severe attacks of hayfever or allergy?
  • Frequent colds, sinusitis or bronchitis?
  • Any form of lung disease?
  • Pneumothorax (collapsed lung)?
  • History of chest surgery?
  • Claustrophobia or agoraphobia (fear of closed or open spaces)?
  • Behavioral health problems?
  • Epilepsy, seizures, convulsions or take medications to prevent them? 
  • Recurring migraine headaches or take medications to prevent them?
  • History of blackouts or fainting (full/partial loss of consciousness)?
  • Do you frequently suffer from motion sickness (seasick, carsick, etc.)? 
  • History of diving accidents or decompression sickness?
  • History of recurrent back problems?
  • History of back surgery?
  • History of diabetes?
  • History of back, arm or leg problems following surgery, injury or fracture?
  • Inability to perform moderate exercise (example: walk one mile within 12 minutes)?
  • History of high blood pressure or take medicine to control blood pressure?
  • History of any heart disease?
  • History of heart attacks?
  • Angina or heart surgery or blood vessel surgery?
  • History of ear or sinus surgery?
  • History of ear disease, hearing loss or problems with balance?
  • History of problems equalizing (popping) ears with airplane or mountain travel?
  • History of bleeding or other blood disorders?
  • History of any type of hernia?
  • History of ulcers or ulcer surgery?
  • History of colostomy?
  • History of drug or alcohol abuse?

Everyone up to 75 years old participants are insured on trips or diving courses conducted by Raya Divers. The insurance is approved by Thai T.A.T. (Tourist Authority of Thailand), and it covers evacuation and treatment for accidents up to  500 000 THB (approx. 12 500 EUR). Most accidents are minor (stumbling on the deck of a boat, dehydration, etc), which the insurance covers easily. However, we recommend each traveler to have their own travel insurance, and for certified divers to have an insurance specifically for scuba diving. This would assist you to avoid possible coverage problems on severe injuries, decompression chamber treatment or expensive evacuation cases back to your home country.