About this tour
When Sarah from our team ran this tour, we found ourselves island-hopping through Ang Thong Marine Park — a cluster of 42 islands that feels genuinely remote despite being just off Koh Samui's coast. The five to seven hours take you snorkelling at Koh Wao, hiking to the Emerald Lagoon viewpoint on Koh Mae Ko, then lunching on a quiet beach at Koh Phaluai. It's a small-group setup (max 16 people), which keeps things manageable and lets you actually chat with your guide rather than yelling over a megaphone. The water's clear, the islands feel untouched, and the pace is relaxed enough that you're not rushing between spots.
Highlights
- Snorkelling Koh Wao's coral reefs without the dive-tourist crowds
- Emerald Lagoon hike rewards you with panoramic island views
- Thai lunch served on an actual beach, not a platform
- Small groups mean guides know your name and pace
- Hotel pickup from Samui — no early pier scramble
- Snorkel gear and drinks included in the price
- Calm anchorages let you swim at your own pace
What to expect
You'll start with a hotel pickup, then head to the boat — a comfortable vessel that holds up to 16 people, so there's genuine elbow room. The first stop is Koh Wao, where the snorkelling is the real draw: colourful reefs, schools of fish, and visibility that makes you understand why people get obsessed with marine life. It's not a long stint in the water, but it's well-timed so you're not exhausted before lunch.
Koh Mae Ko comes next. You'll hike up to a viewpoint overlooking the Emerald Lagoon — it's a proper walk, not a stroll, but nothing strenuous. The lagoon itself sits in a crater and feeds from the sea through caves underground, which is genuinely striking. You can't swim in it, but the view is worth the climb. Then lunch happens on Koh Phaluai's beach: Thai buffet, decent spread, and actual time to sprawl in the sand or float in the shallows. The whole rhythm feels unhurried, which is rare on these group tours.
What travellers say
- Snorkelling quality rivals paid dive sites, without the certification requirement
- Small-group cap keeps the boat intimate and guides attentive
- Emerald Lagoon hike delivers genuine wow-factor views
- Beach lunch feels like a real break, not a rushed pit stop
- Hotel pickup means no pre-dawn pier logistics
- National park fees add 300+ THB per person at the gate
- Minimum 8-person group can leave late bookings vulnerable to cancellation
- Not suitable for pregnant travellers or those with spinal/heart concerns
- Emerald Lagoon viewable only — swimming inside is off-limits
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 proper snorkelling outing without feeling industrial. Small groups mean you're not jostling with 50 other tourists. Hotel pickup saves the faff of getting to a pier early. The Emerald Lagoon hike is short enough that casual hikers manage it, but striking enough to justify the effort. Lunch on a real beach beats eating on a boat.
The national park entry fee (300 THB per adult, 150 per child) isn't included, so budget for that separately. You need a minimum of 8 people for the tour to run, so book early in peak season to avoid cancellations. It's not a good fit if you have spinal issues, are pregnant, or have cardiovascular concerns — the boat ride and swimming put real demands on you. The hike is fine for most fitness levels, but wear proper shoes and bring sunscreen. Peak times (December–February) can push the small-group feel a bit, so consider shoulder season if crowds bother you.
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.