Manta Queen 5 Similan islands and Koh Bon liveaboard

Similan Islands diving day trip

Embark on an unforgettable underwater adventure with a Similan Islands diving day trip in the pristine waters of the Andaman Sea. The Similan Islands, a chain of nine islands and several rocks spanning 24 km, are nestled 70 km off the coast of Khao Lak, Phang Nga Province. Established as a Marine National Park in 1982, this underwater paradise covers an expansive 70 km2. The park was later expanded in 1989 to include the solitary islands of Koh Bon and Koh Tachai, resulting in a total area of 140 km2 and a land mass of approximately 26 km2.

Meaning Behind ‘Similan’

The term ‘Similan’ originates from the Malay language, meaning ‘nine.’ Although the islands have distinct Thai names, they are commonly referred to by their numbers, following the sequence from south to north.

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    • Diving day trip from Khao Lak
    • 2 Dives
    • Similan islands, Koh Bon, Koh Tachai
    • Max 4 divers with 1 professional guide
    • Nitrox available 
    • Best price guarantee
    • Book with local diving experts




Pick up from your accommodation in Khao Lak.
At 9.00 AM the fast speedboat Orca 2 leaves to the Similan Islands from Khao Lak jetty. The travel time is around 2 hours.

The friendly and experienced crew welcome you onboard on the comfortable dive boat. The boat master gives a short boat briefing before you enjoy a nice coffee and a European breakfast.

Dive groups

Dive groups are based on certification level and dive experience. In this way everybody will feel themselves comfortable: from novice open water diver to the more experienced diver. The ratio is 4 divers to 1 Dive Master. Each Dive Master gives a detailed dive briefing to his group and helps you with setting up your diving gear.
Plunge into the crystal clear water and enjoy the incredible marine wildlife. Dive time 45-60 minutes.

Surface interval

Back onboard a fresh made delicious Thai and Western style lunch is served. In the meantime, the boat heads to the next dive site. During the surface interval there is plenty of time to relax or to sunbathe on the spacious sundeck.

Arriving at the second dive side, your Dive Master gives a detailed dive briefing and will help you with gearing up.
Plunge back into the water and get the experience of world-class diving.

Relaxing after the dives

After the last dive snacks and fresh fruit are served. Orca 2 starts returning back to Khao Lak. This will give you enough time to fill in your logbook, exchange experiences, enjoy the scenery and have a drink The arrival time is around 17.00 PM . A taxi is waiting to bring you back to your accommodation in Khao Lak.

Schedule can be changed due weather, sea conditions, instructions by the national park authorities.    


Monday Similan islands 4,5&6
Tuesday Koh Bon & Koh Tachai
Wednesday Similan islands 5&7  
Thursday Similan islands 6&7  
Friday Similan island 8  
Saturday Koh Bon    
Sunday Similan island 9  


Similan islands daytrip 2 dives : 5.000.- Baht

Koh Bon daytrip 2 dives : 5.000.- Baht

Included in the price are :

  • Experienced dive guides and instructors (no freelance)
  • Small dive groups of 4  divers to 1 dive guide
  • Breakfast, lunch, fruits and snacks
  • Drinking water, tea and coffee
  • Towels
  • Transfers for Khao Lak area

Excluded in the price are :

  • National park entrance and diving fees : 700.- Baht
  • Full set of diving equipment : 500.- Baht per day
  • 15 Liter tank : 150.- Baht per dive
  • Nitrox 32 % : 250.- Baht per dive
  • Dive computer : 400.- Baht per day