Speed across the Gulf from Koh Samui to a ring of limestone islands where snorkeling, sea caves and an emerald lagoon await. This full-day trip combines guided snorkeling, easy kayaking and beach time in Angthong National Marine Park.
More ways to explore the area's outdoor wonders
The speedboat cuts across the Gulf of Thailand and the island silhouettes sharpen: sheer limestone cliffs rise like stacked plates, lagoons glimmer inland, and the sea pushes cool, briny air over the deck.
Difficulty
moderate
Duration
10 hours
Fitness Level
Suitable for average fitness: you should be comfortable swimming short distances and paddling for 20–40 minutes; expect repeated short bouts of activity throughout the day.
Wildlife
History
Angthong has long been used by local fishermen; the park was designated as a national marine park to protect its karst islands and coral habitats.
Conservation
The park enforces no‑take zones and limits visitor numbers at sensitive sites—follow guides’ instructions and never take shells or coral to minimize impact.
Reserve your spot on the From Samui: Angthong National Park Snorkeling & Kayaking today and enjoy a trusted, highly rated experience designed to help you make the most of your adventure.
Take motion-sickness meds early
Rough patches of sea are common on the crossing—take preventatives at least 30 minutes before departure.
Use reef-safe sunscreen
Apply mineral sunscreen and reapply after swimming to protect coral and marine life.
Bring a lightweight long-sleeve
Wind on the open boat is cooling but deceptive—an SPF shirt helps prevent sunburn during long exposures.
Wear secure water shoes
Rocky beaches and coral shards make closed-toe water shoes preferable to flip-flops.
Reef‑safe sunscreen
Protects your skin and the reef; reapply after snorkeling.
summer
Quick‑dry long‑sleeve or rashguard
Shields against sun and wind while staying breathable on a hot day.
Closed‑toe water shoes
Protect feet on rocky beaches, in shallow reefs and when climbing ashore.
Dry bag (10L)
Keeps phone, wallet and spare clothes dry during boat transfers and paddles.