About this tour
When Alex from our team ran this Similan Islands snorkeling tour, we jumped on a speedy catamaran from Phuket and spent the day hopping between Thailand's most famous islands. The Simlians are packed with visitors—and for good reason: the water's genuinely clear, the sand's brilliant white, and the underwater rock formations (especially Stonehenge, named for towering boulders) are proper scenic. You're hunting turtles, dolphins if you're lucky, and plenty of fish. The whole thing runs 11–12 hours, including hotel pickups. The park only opens October to May, so timing matters.
Highlights
- Stonehenge snorkel site: dramatic rock formations rising from 25+ metres deep
- Sailing Rock climb offers sweeping views across the entire archipelago
- Speed catamaran cuts travel time—more time in the water, less on the boat
- Dolphin and sea turtle spotting (no guarantee, but our team stayed hopeful)
- Crystal-clear water and white-sand beaches live up to the hype
- Thai traditional lunch and fresh fruit included—decent fuel between dives
- Round-trip hotel transfers mean no hassle organising your own ride
- Full travel accident insurance baked in; one less thing to think about
What to expect
You'll be picked up from your hotel early (expect 6–7am) and driven to the speedboat. The catamaran peels out toward the islands, and the ride's quick enough that you won't feel cooped up. When you arrive, the routine's straightforward: gear up (mask, fins, life jacket all supplied), jump in, snorkel for 45 minutes or so, climb back aboard, move to the next spot. You'll hit at least two or three sites—Stonehenge is the star, where the underwater rocks create maze-like corridors. Christmas Point is another favourite. Between sites, you'll eat Thai food on deck: it's genuinely tasty, nothing fancy, but fills the gap. The catamaran does most of the work for you.
What's real: the water is clear and warm, and you'll see fish. Dolphins and turtles aren't guaranteed—our team didn't spot dolphins, but did see a couple of turtles at a distance. The Sailing Rock viewpoint is worth the climb if your legs are up for it. Crowds are noticeable (it's peak season, after all), but the boat moves you through efficiently. Pack sunscreen religiously; you're exposed all day. The 11–12 hours includes pickups, so actual snorkelling time is closer to 4–5 hours spread across three or four sites.
What travellers say
- Speedboat cuts transit time; more snorkelling, less boat time
- Gear, food, insurance, and transfers all included—minimal admin
- Stonehenge and Sailing Rock are genuinely stunning, worth the trip
- Clear water and healthy reef life deliver on the promise
- Accessible for non-divers and most fitness levels, kids welcome
- Small-group structure keeps the vibe manageable, not industrial
- Passport handover for park entry is a logistical friction point
- Early hotel pickups aren't ideal for night-owl travellers
- Dolphin and turtle sightings aren't guaranteed despite marketing hints
- Seasickness risk on the catamaran ride; gentle stomachs should prepare
Themes summarised by our team from public information about this tour. Verify specifics on the operator's page before booking.
Good to know
This is a reliable, well-run introduction to Similan's best snorkelling without needing diving certification. The all-in approach (transfers, lunch, gear, insurance) suits travellers who want simplicity. Clear water and healthy reefs are genuine draws. Small groups usually means you're not fighting dozens of other snorkellers at each site. It's suitable for most fitness levels, and kids aged 4–11 qualify at a reduced rate.
You'll need to hand over your passport to the operator after booking so they can pre-buy your national park entry ticket (400 THB adult, 200 THB child)—a bureaucratic quirk worth knowing upfront. Early starts aren't fun if you're a late riser. Seasickness can hit on the catamaran ride out, especially if the swell's up. The park only runs October–May, so you'll miss it in shoulder months. Weather delays or cancellations do happen; the operator will rebooking you or refund. Not advised if you're pregnant, have heart conditions, or spinal injuries.
Bring ID, swimsuit, towel, sunglasses, high-SPF sunscreen, hat, camera, and a sense of humour. The speed boat is motorised, so you're not paddling—just snorkelling and sightseeing. Budget around 11–12 hours total, including transfers. Peak times are July–August and Christmas holidays; October–November is less hectic.
Tour sold and operated by Viator via Viator. Descriptions on this page are original BugBitten summaries written by our team — not copied from the operator. Prices and availability are confirmed at checkout.