Thailand 
Brand new in 2018, Blue Marlin is a large purpose-built scuba diving speedboat. With an experienced European team and warm Thai hospitality. Its trips to Richelieu Rock, Koh Tachai & Koh Bon are a lot of safe & affordable fun. Blue Marlin only visits the best dive sites in Thailand, and the journeys from Baan Nam Khem Pier are smooth & comfortable, mainly due to the clever design and build of this great new diving speedboat. Up to 20 divers are able to sit comfortably during the crossings, and you can easily walk around during the lunchtime break. There are shaded and sunny areas, a clever environmentally-friendly toilet, and ice-cold soft drinks for free.
Blue Marlin is very large, at nearly 16m in length, and it's powered by three large outboard 4-stroke motors. You can maximise your time on land or at Khao Lak hotels and resorts due to the smooth transfer service, and the quick but comfortable journeys out to the dive sites & back. Unlike its competitors, Blue Marlin has a clever design that offers a proper dive deck, instead of forcing divers to struggle past the motors while wearing fins. Also, instead of having the tanks and equipment in the middle of the boat, this is all kept behind the seats, meaning that everyone can see each other and communicate easily. Up to 5 dive guides take groups of up to 4 divers in carefully-selected groups depending on certification level, diving experience and who’s friends and family.
Trips are scheduled to go to Richelieu Rock up to four days per week, Koh Bon two days and Koh Tachai one day. In the situation when a planned Koh Bon or Koh Tachai trip is not possible, Blue Marlin will go to The Similan Islands instead. This will only happen if all of the diving ticket allocation for Koh Bon or Tachai runs out.
Blue Marlin guests are required to spend the night before each trip in Khao Lak (not Phuket), in order to be able to visit the the dive centre to ‘check in’ before 6.00pm.
Prices & Schedule
| Blue Marlin Diver Prices Overview 2025 / 2026 | ||
|---|---|---|
| Destinations | Duration | Per diver |
(or Similans, if Koh Bon not possible) ( 2 Dives) | 1D | Per diver147 USD |
(or Similans, if Koh Tachai not possible) ( 2 Dives) | 1D | Per diver147 USD |
( 2 Dives) | 1D | Per diver156 USD |
Itinerary
Blue Marlin guests need to check-in at the dive centre the day before departure and stay in a Khao Lak hotel that night.
After being picked up from hotels around Khao Lak, you are taken to Baan Nam Khem Pier to the north.
Departure from the pier is at 9.00am. There are 2 scheduled dives, with lunch provided during the surface interval.
Upon return to Baan Nam Khem Pier, you are transferred to your chosen hotel around Khao Lak.
The itineraries below are the most-common for each trip, but these can sometimes be changed for a number of reasons. Small changes are made due to weather & sea conditions, special marine life sightings, overcrowded dive sites, local-authorities' instructions, and the needs & requests of the paying guests. The safety & comfort of all guests is most important at all times.
| Itineraries | ||
|---|---|---|
| Itinerary Name (click the itinerary name to open) | Days / Nights | Number of dives |
| Richelieu Rock | 1D / 1N | 2 Dives |
| Koh Bon | 1D / 1N | 2 Dives |
| Koh Tachai | 1D / 1N | 2 Dives |
Facilites, Layout and Specifications
Courses
Transfer details
Blue Marlin transfers are for free to guests in central and north Khao Lak. The transfers are shared with other Blue Marlin guests.
Guests staying 'over the hill' to the south of Khao Lak need to pay a surcharge of 100 THB/person.
The departure pier is to the north of Khao Lak. Therefore, guests staying in hotels around the south of Khao Lak are collected first in the morning and dropped off last in the afternoon. Those who are staying further north are picked up last in the morning, and dropped off first in the afternoon.
Transfers cannot wait for guests who are late or still eating breakfast at the agreed pickup time.
|
Blue Marlin Scheduled Transfers 1D Trips
|
|
|---|---|
| 07:20 - 08:20 | Pick up from Khao Lak : Free |
| 08:30 | Departure ( Baan Nam Khem Pier, Khao Lak ) |
| 15:15 | Return ( Baan Nam Khem Pier, Khao Lak ) |
| 15:15 - 16:15 | Drop off to Khao Lak : Free |
|
Blue Marlin Scheduled Transfers 1D Trips
|
|
|---|---|
| 9:20:00 - 10:20:00 | Pick up from Khao Lak : Free |
| 10:30 | Departure ( Baan Nam Khem Pier, Khao Lak ) |
| 15:15 | Return ( Baan Nam Khem Pier, Khao Lak ) |
| 15:15 - 16:15 | Drop off to Khao Lak : Free |
Guests who are unable to meet the scheduled pick ups or would like private transportation are welcome to contact us to arrange a private taxi at the most competitive rates.
Booking / Enquiry
Blue Marlin Reviews
