Race across the Andaman Sea to the Similan Islands on a speed catamaran, snorkeling bright coral gardens, relaxing on Princess Bay’s white sand, and climbing Sailboat Rock for panoramic views. This day trip blends easy swims, wildlife sightings, and photographic shoreside stops.
More ways to explore the area's outdoor wonders
The catamaran cuts a clean track through the Andaman Sea and, within an hour, the color of the water changes from deep indigo to the vivid turquoise that announces the Similan Islands. You step off onto powder-white sand at Princess Bay, the motor’s hum replaced by the chatter of birds and the soft clink of reef against rock. Later, Sailboat Rock rises like a granite watchman, inviting a short climb and wide ocean views.
Difficulty
easy
Duration
12 hours
Fitness Level
Basic fitness for short swims, light climbing (Sailboat Rock) and getting on/off the boat; suitable for most healthy travelers
Wildlife
History
Part of Similan Islands National Park since the early 1980s, the archipelago’s name derives from the Malay word for nine and has long been important to local fishers.
Conservation
The park enforces seasonal closures and limits on anchoring to protect reefs and nesting turtles—use reef‑safe products and avoid touching coral.
Reserve your spot on the Similan Islands Day Tour by Speed Catamaran from Khao Lak 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; apply on land and pack a small towel to dry before returning to the boat.
Prepare for motion sickness
Boating between islands can be bumpy—take anti-nausea meds beforehand if you’re sensitive and sit mid-boat where motion is less pronounced.
Secure a fitted snorkel mask
Masks are provided but a personal, well-fitting mask reduces fogging and improves comfort while snorkeling.
Pack light beach footwear
Thin reef shoes protect feet when scrambling on granite or shallow reefs between snorkel sites.
Reef‑safe sunscreen
Protects both your skin and the coral—apply before entering the water.
winter
Snorkel mask (personal)
A well-fitting mask improves visibility and comfort; rentals are available but vary in fit.
summer
Light waterproof daypack or dry bag
Keeps phone, cash, and a spare shirt dry between snorkel stops and on the boat.
spring
Motion‑sickness medication or wristbands
Useful if you’re prone to seasickness during open-water crossings.
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