About this tour
When Noah from our BugBitten team did this five-island snorkelling tour around Koh Tao and Koh Nang Yuan, we spent a full day bouncing between some genuinely solid underwater spots. The boat hits Nang Yuan, Mango Bay, Hin Wong Bay, Aow Luek, and Shark Bay—the last one delivering on its turtle promise most mornings. It's a relaxed social vibe with a mixed group of divers and first-timers. Equipment, lunch (Thai with vegetarian options), fruit, and a taxi pickup are bundled in. Seven hours start to finish, and you'll either love the rhythm or find it a bit repetitive depending on your snorkel appetite.
Highlights
- Turtle sightings at Shark Bay — reliable and close-up enough to matter
- Nang Yuan's turquoise shallows: steep drop-offs and dense coral gardens
- Lunch onboard beats typical snack-run tours — proper Thai curries included
- Gear provided is solid; no flimsy rental-quality stuff here
- Mix of five distinct sites keeps energy up without feeling rushed
- Life jackets and underwater photography included — good value-add
- Small-group feel; crew names you by mid-morning
What to expect
You'll get picked up from your accommodation, then head to the pier for a briefing and a quick gear check. The boat departs and spends roughly 90 minutes bouncing between sites, anchoring for 45 minutes to an hour at each spot. Nang Yuan is the standout: shallow, warm, packed with parrotfish and wrasse. Mango Bay and Hin Wong are calmer—better for nervous swimmers. By lunchtime you're moored somewhere scenic, eating proper pad thai and fresh papaya while crew chat with you about what you've seen. Afternoon brings Shark Bay, where patience (and luck) usually pays off with green or hawksbill turtles drifting past. The boat returns by late afternoon, a bit tired but the kind of tired that comes from a good day in the water. Expect 20–30 other tourists spread across two boats; it's social without feeling like a ferry.
What travellers say
- Turtle encounters happen most trips — main event delivered
- Five-site spread avoids day-long monotony of single-spot tours
- Proper Thai lunch and vegetarian options included
- High-quality rental gear; underwater photographer adds value
- Pickup and drop-off saves hassle of navigating Koh Tao pier
- Nang Yuan entry fee (250 THB) not included in advertised price
- Seven-hour days on a boat suit only keen snorkellers
- Sea chop in certain seasons may close sites or cause discomfort
Themes summarised by our team from public information about this tour. Verify specifics on the operator's page before booking.
Good to know
The turtle sightings are genuine—not guaranteed, but regular enough that most people see at least one. Five sites in one day means variety; you're not stuck in one bay for seven hours. Vegetarian lunch options mean partners aren't eating plain rice. Underwater photography is a nice touch if you don't have a GoPro. Life jackets ease nervous swimmers into deeper water.
The Koh Nang Yuan entry fee (250 THB adult) isn't included, so budget for that. Early start (usually 8–9 a.m.) and a seven-hour round trip can feel long if you're not a water person. Sea conditions can be choppy mid-year, and if the swell picks up, some sites get closed. Not suitable if you're pregnant or have heart concerns—it's a full day on a boat with ladder climbs. Bring seasickness tablets if you're prone. Peak season (November–February) means busier boats and shadier underwater photography service quality. Restroom is onboard but basic.
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.