A classic liveaboard safari through granite swim-throughs and Andaman Sea pelagics. Running 8 days (13–20 Mar 2027), it’s built for intermediate-level divers. You’ll need your Advanced Open Water (or Open Water + Deep) and around 20 logged dives. We hold 20 slots for the iDive group, and the trip is confirmed the moment 15 divers reserve.
Your dive trip host
Amitabh Gautam
Founder · SSI Advanced Adventurer · 200+ dives
Amitabh leads iDive's curated expeditions. A former television journalist of 25+ years, he traded the newsroom for the Arabian Sea in 2016 and founded iDive on small classes, certified instructors and real safety standards. He'll be your point of contact before, during and after the trip.
SSI & PADI affiliated Small groups Based in Goa, India
Why this expedition
Granite boulder swim-throughs
Richelieu Rock, a manta & whale-shark site
Koh Bon & Koh Tachai pinnacles
Up to 4 dives a day including night dives
Much of Thailand's best diving in one trip
Day by day
Day 1Board in Khao LakBoarding, check dive and safety briefing.
Day 2Similan bouldersSwim-throughs, soft corals and reef fish across three dives.
Day 3Koh BonManta ridge and a drift along the limestone wall.
Day 4Koh Tachai & Richelieu RockThe trip's big-fish day, barracuda tornadoes and maybe a whale shark.
Day 5Richelieu Rock encoreA second crack at the Andaman's richest pinnacle.
Day 6Boon Sung wreckMacro-rich wreck and final reef dives; de-gas before flying.
Day 7DisembarkBreakfast and transfer back to Khao Lak/Phuket.
CertificationAdvanced Open Water (or Open Water + Deep)
ExperienceMinimum 20 logged dives
Come preparedAround 20 logged dives · Some sites reach 25–30 m · Nitrox certification useful for repetitive diving
We verify every diver’s certification before confirming a slot, it keeps the group safe and the diving relaxed. Not quite there yet? Level up with a course and join a future expedition.
Getting there & staying
Your diving, meals and in-trip transfers are sorted by iDive. Here’s how to handle flights and any pre/post-trip nights around Similan Islands, Thailand.
Getting there
Fly into Phuket (HKT) · 4-6 hours from India.
Where to stay
Hotels and stays near the dive sites, compare rates and book direct.
Yes. With around 20 dives and an AOW card (or Open Water plus Deep), you will be comfortable. The sites run from easy reefs up to deeper pinnacles, so there is room to step up gradually.
Will I see mantas or whale sharks?
March is peak season for both at Koh Bon and Richelieu Rock. Sightings still come down to wild animals, so nothing is promised.
Do I need Nitrox?
No, but with up to four dives a day it lengthens your bottom time and gives you more margin. You can certify before the trip.
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Questions before you commit?
Not sure if you're ready for Similan Mantas & Granite Reefs, or want to bring a group? Talk to a iDive dive pro, we'll be straight with you about whether this trip is the right fit.
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From ₹1,30,000 · 20% to reserve
Reserve your slot
Similan Mantas & Granite Reefs · Mar 2027
20% reservation hold
₹26,000
Trip total / person
₹1,30,000
Slot reserved!
You're on the list for Similan Mantas & Granite Reefs. We'll message you on WhatsApp within 24 hours to verify your certification and confirm next steps. No payment has been taken.
This expedition needs Advanced Open Water (or Open Water + Deep) and around 20 logged dives. Not there yet? Book a course or a few fun dives with iDive in Goa to qualify, then come back and grab your slot.
