Two days aboard MV Koon deliver close-up snorkeling at Islands No.4–9 in Mu Ko Similan National Park. Expect clear-water coral gardens, an overnight on a comfortable liveaboard, and panoramic views from Sailing Rock.
More ways to explore the area's outdoor wonders
You wake to the slap of warm Andaman surf against the hull and a horizon scattered with granite domes. Morning light picks out patch reefs below the boat as guides test masks and point toward a ribbon of blue where parrotfish and nudibranchs feed.
Difficulty
moderate
Duration
2 days
Fitness Level
Moderate — comfortable swimming ability and mobility to board small boats and climb short rocky steps.
Wildlife
History
Mu Ko Similan was designated a national park in the 1980s to protect its reefs and unique granite islands; visitation is now regulated to limit ecological damage.
Conservation
Strict park rules, seasonal closures and guided access aim to reduce reef stress; use reef‑safe products, avoid touching coral, and follow guide instructions.
Reserve your spot on the 2D1N Similan Islands Snorkeling Liveaboard by MV Koon from Phuket today and enjoy a trusted, highly rated experience designed to help you make the most of your adventure.
Book the right season
Mu Ko Similan National Park is closed May 16–Oct 14 for conservation; plan trips in the dry season (mid‑October to mid‑May).
Use reef‑safe sunscreen
Apply sunscreen at least 15 minutes before entering water and choose reef-safe formulas to protect coral.
Prepare for seasickness
Bring antiemetic medications if you’re prone to motion sickness—speedboat transfers and open-sea sections can be choppy.
Protect your gear
Bring a small dry bag and a wrist leash for cameras and masks—boat decks and rocky beaches are slippery.
Mask, snorkel and fins (or bring your own)
Well‑fitting gear improves air consumption and comfort during multiple snorkel sessions.
Reef‑safe sunscreen
Protects your skin and the coral reef—apply before boarding and after swims.
summer
Light waterproof bag/dry bag
Keeps valuables and extra layers dry on a wet boat deck.
Seasickness remedies (tabs or patches)
Helps you stay comfortable during transfers and open‑sea cruising.