MV Koon 9 is brand new and the largest Similan liveaboard at 52 metres long and 10.5 metres wide. It's is simply huge. Although its guest capcity is 30 divers, there is still plenty of room for everyone to relax on board, and to gear up on the vast dive deck before jumping into the crystal clear Andaman Sea. All cabins are en suite, have a large window, and most have a smart tv. The boat's range of itineraries also makes it the perfect choice for a Similan or Richelieu Rock scuba diving cruise.
There are guest decks on MV Koon 9. On the main deck there is a vast diving platform, which is well designed to enable everyone to have their own tank slot and space to gear up. There's also plenty of storage boxes, cubby holes and rinse tanks. Just in front of the diving platform you will find the communal bathrooms. This is the perfect place to take a post-dive shower, use the toilet, or change into your wetsuit. Then we have a sliding door from here into the air-conditioned corridor that leads to all of the boat's cabins. There are twin & double cabins on each side, and at the front of this main deck there are fixed double-bed cabins. All the cabins are air conditioned, and have a private en suite bathroom.
The upper deck of Koon 9 is where you spend most of your time relaxing indoors. There is a small outdoor seating area at the back of this deck, normally where guests might smoke or relax with a drink. But most of this upper deck is air-conditioned semi-indoor communal areas for dining and socialising. Approximately 70% of this upper deck's indoor area is a huge restaurant dining room. Here you can enjoy fresh fruit & snacks all day & night, plus delicious meals served throughout the day. There's plenty of space to eat, and the food is what you can expect from a master Thai chef! The remaining floor space is a large lounge saloon with comfortable sofas and armchairs, and a huge television with a games console.
Finally, the top deck of Koon 9 is an exposed area where you can top up your tan, enjoy 360° views, gaze at the night sky, or just enjoy the breeze with a few drinks with friends. There are sun loungers, soft seating and some shaded space up here. Wherever you spend your time on Koon 9, you will have space and the opportunity to relax and enjoy a wonderful diving cruise.
And another thing that makes Koon 9 such a great boat to join is its choice of itineraries. You can choose to join for trips, which start in the morning six days a week and stay aboard for one, tow, three or even four nights! Or, if you join on a Wednesday it's in the evening and you can stay until Friday, Saturday, Sunday or even Monday late afternoons. This is made possible by daily speedboat transfers from the mainland. Therefore, you can join in the morning and stay as long as you like, or join on a Wednesday evening, too.
In January 2025 our team dived from Koon9 and you can watch the video below👇🏻. We were incredibly impressed with how the system works. Divers who join by speedboat in the morning arrive on a nearly-empty boat, because the overnight guests have already gone diving. Then by the time the new guests are ready to dive, those others are coming back from their dive for lunch. The whole day is staggered like this, so that the dive site, dive platform and buffet food area are never crowded. And don't worry about being in the second wave to meals, because the wonderful chef team are constantly cooking and serving fresh and delicious meals. We were also very impressed by the rental gear, the team of guides and instructors and the quality & service everywhere on the boat.
Koon 9 has lots of different itineraries, so please check carefully.
If you join on a Wednesday evening, you get to dive four times on Thursday and every day after that, until your final day where you dive three times before coming back by speedboat.
If you join in the morning, then your first and final days give you three dives. Any days in the middle have up to four dives.
At the end of your trip, you come back to Khao Lak by speedboat, apart from if your trip ends on a Wednesday.
Depending on the day of the week, your trip will visit different diving sites, and there are two different piers that the speedboats use.
Normally Thursday & Friday is from Tab Lamu and the rest of the week from Baan Nam Khem.
Please check carefully to make sure your chosen trip on the schedule matches the itinrary that you are looking at.
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.
3 x 65person life rafts, Oxygen, First aid, Fire extinguishers, CCTV.
Courses
There's a selection of courses available on Koon 9, but most need to be booked in advance so that the team can prepare staff and materials.
Nowadays, it's common to do PADI eLearning online before you come, to reduce time spent studying on the trip.
SSI courses don't have eLearning, but are less expensive than PADI.
The Advanced Open Water Diver and Nitrox EANx courses are the most-commonly chosen courses on liveaboards.
Courses
Courses
Prices
SSI:
SSI Adventure Deep Dive
57
USD
PADI:
PADI Adventure Deep Dive
57
USD
SSI:
SSI Enriched Air Nitrox
143
USD
PADI:
PADI Enriched Air Nitrox
Including: eLearning
175
USD
SSI:
SSI Advanced Adventurer
223
USD
PADI:
PADI Advanced Open Water
Including: eLearning
286
USD
Transfer details
The Koon 9 team collect you from Khao Lak hotels in the morning for most trips, and in the evening for trips that start on Wednesdays. Transfers are shared with other guests, and at set times.
Phuket transfers are available on nrequest for a small fee.
At the end of your trip you will be taken back to your Khao Lak hotel, in a van shared with other guests. If you need to go to Phuket, the Koon9 team have a shared minivan every day.
Booking / Enquiry
Booking or enquiring is easy follow these steps
Step 1:
Complete the form below by entering your details
Step 2:
We usually reply within 2 hours (please check your email & spam)
Step 3:
We can reserve your space(s) commitment-free for up to one week
Step 4:
Deposits to book are usually paid using any card, PayPal or bank transfer
MV Koon9 Reviews
Read real reviews from people who have dived with
MV Koon9
John
Nationality: American
Dived: 12 December 2025
Boat rating: 10/10
Phenomenal experience. Staff extremely friendly and helpful. Self and well maintained environment and instruction. Delicious food. Clean cabins. Couldn’t recommend enough.
chloe
Nationality: British
Dived: 06 December 2025
Boat rating: 10/10
⭐️⭐️⭐️⭐️⭐️ Excellent 2D/1N Similan Islands Liveaboard Trip!
We had an absolutely fantastic 2-day, 1-night liveaboard trip to the Similan Islands. From start to finish, everything was extremely well organised, making the whole experience smooth and stress-free.
The boat was clean, tidy, and very comfortable, and the food on board was surprisingly good with plenty of variety. Every meal was fresh and ta
sty.
Our dive instructor was truly amazing – professional, patient, and incredibly knowledgeable, which made the dives even more enjoyable and safe. All of the staff were so lovely, friendly, and helpful, and they genuinely went out of their way to make sure everyone had a great time.
We couldn’t have asked for a better experience and would highly recommend this liveaboard to anyone visiting the Similan Islands. An unforgettable trip!
...read more
Aaron
Nationality: Irish
Dived: 01 December 2025
Boat rating: 10/10
Fantastic liveaboard, huge boat lots of room, great facilities. The flexibility of being able to pick your own days is fantastic. Food was great, extremely well organised, would highly recommend
Rylie
Nationality: Australian
Dived: 28 November 2025
Boat rating: 9/10
I did 2N3D. Solo. I had great time on board. Facilities, food and staff Are great! Really efficient and helpful. Boat operations run smoothly. Only negative I can say is the bed aren’t very comfy. Being a young man it’s not such a big deal for me. But my parents who dive also they would struggle to get a good sleep. I’m not sure if more deluxe cabins are available. I would stay again. 10 dives for a solo is great. With
friends and family I could see myself booking more.
...read more
Jassem Al-Kuwari
Nationality: Qatari
Dived: 10 November 2025
Boat rating: 7/10
The staff and services are good. But food is disaster. I dont eat pork and most of the food is pork. There should be international dishes
Susanne
Nationality: American
Dived: 09 November 2025
Boat rating: 8/10
The boat & dive staff were very good. Diving was excellent. I did not enjoy the food because I am vegan. I entered my vegan info into the form but there were eggs in many of the meals.
Dan
Nationality: Romanian
Dived: 07 November 2025
Boat rating: 10/10
We had an amazing time diving and styaing on the MV Koon9! Everything was PERFECT: the diving sites were beautiful, our dive instructor Flip was wery great, the boat was in top condition and so big and stable and comfortable, and had all the facilities we could've wished for. The food was always a feast: what an amazing chef! Definitely some of the best food we had during our time in Thailand. And last but not least: the staff
and crew on board of the Koon9 was so professional, friendly and helpful at all times.
...read more
J
Nationality: Singaporean
Dived: 07 November 2025
Boat rating: 8/10
Amazing experience and crew!
Jesse
Nationality: Canadian
Dived: 03 November 2025
Boat rating: 10/10
Amazing staff, boat and DM’s. Knowledgeable, safe and experienced guides made the diving fun. Coming back again !
Laura
Nationality: Netherlander
Dived: 01 November 2025
Boat rating: 10/10
We had an amazing time diving and styaing on the MV Koon9! Everything was PERFECT: the diving sites were beautiful, our dive instructor was great, the boat was in top condition and so big and stable and comfortable, and had all the facilities we could've wished for. The food was always a feast: what an amazing chef! Definitely some of the best food we had during our time in Thailand. And last but not least: the staff and crew
on board of the Koon9 was so professional, friendly and helpful at all times: huge credits to all staff and crew, who truly all deserve a 10/10! We hope to return and do a liveaboard on the Koon9 again, and can highly recommend it to other divers!
...read more