Similan Islands Scuba Diving

Snorkeling and Diving Liveaboard Cruises
Dive Courses Similan Islands
Snorkeling and Diving Daytrips


For the best Similan Islands scuba diving experience Join Oktavia Dive Center and our dedicated Similan Islands liveaboard vessel MV Oktavia.

With a choice of five, four, three, and two days cruises available throughout the season we offer unforgettable memories through the Similan Islands, Koh Bon, Koh Tachai and Richelieu Rock to fit your schedule and budget.

Our objective is to ensure that every one of our guests leaves our boat with a huge smile and wonderful memories.  From your first contact with us, to the moment you depart our wonderful boat MV Oktavia, we promise to provide you with a warm, friendly, and professional service and pride ourselves on prompt, personal communication during the whole booking process.

Scuba Diving Courses

We can also provide you the option to expand you diving education whilst on-board MV Oktavia. As an affiliated SSI Dive Center we offer the best and most comprehensive dive courses in Khao Lak. With the addition of our On-line eLearning course material, you can complete all the theory and review quizzes from the comfort of your home.  This allows you to make the most of your time diving in Thailand and less time confined to the classroom.

Short on Time?

If you are short on time but still want to experience the magic of the Similan Islands we can offer you a choice of Dive and Snorkel Day trips. In association with a select few operators that we know and trust here in Khao Lak, we can arrange for you to join them for one of their scheduled Day Trips to the Similan Islands to explore the surrounding dive and snorkel sites.