Spend a day hopping between Koh Nang Yuan’s three-bay viewpoint and Koh Tao’s best snorkeling beaches — Aow Muang, Aow Hin Wong, Aow Leuk and Shark Bay. This guided big-boat tour includes gear, lunch, hotel transfers and underwater photos.
More ways to explore the area's outdoor wonders
The morning sea lifts the big boat like a steady breath and Koh Tao’s jagged silhouette slides into view: palms, white sand, and the ribbon of Koh Nang Yuan’s three bays visible from the viewpoint. On this full-day outing you move between vantage points and shallow reefs, swapping stories with the crew as the island chain unfolds.
Difficulty
easy
Duration
7 hours
Fitness Level
Suitable for most fitness levels; should be comfortable swimming short distances and climbing a short viewpoint trail.
Wildlife
History
Koh Tao and nearby islets were once small fishing outposts and later developed into dive hubs in the late 20th century; tourism shaped much of the island economy.
Conservation
Local operators emphasize reef-safe practices and limit feeding; visitors are asked not to touch coral, to use reef-safe products, and to avoid disturbing wildlife.
Reserve your spot on the Koh Tao Top Crystal Clear Snorkeling Day Tour by Big Boat today and enjoy a trusted, highly rated experience designed to help you make the most of your adventure.
Bring reef-safe sunscreen
Use mineral-based sunscreen to protect coral and reapply often—sun is intense on the water.
Wear water shoes or reef sandals
Sandy beaches and rocky entry points can be slippery; light footwear protects feet on land and in shallow reefs.
Hydrate and pace yourself
Seven hours on the water can dehydrate you—drink water between snorkeling sessions and avoid heavy alcohol beforehand.
Mind currents at Shark Bay
Currents can surprise in clear, shallow water—stay near the guide and wear a life jacket if unsure of your strength.
Reef-safe sunscreen
Protects your skin and the reef; mandatory for responsible snorkeling.
summer
Quick-dry swimwear and rash guard
Provides sun protection and comfort during multiple snorkel stops.
summer
Dry bag (5–10L)
Keeps phone, wallet and spare clothing dry on a wet boat.
Polarized sunglasses and hat
Cuts glare when traveling between islands and at the viewpoint.
summer