
Snorkel
crystalline reefs at iconic spots like Anita’s Reef and Donald Duck Bay

Relax
on pristine white-sand beaches edged with granite formations

Dive
Paddle or dive in turquoise waters teeming with coral and marine life

Sea Life
Spot turtles, reef sharks, and possibly manta rays or whale sharks
A Marine Symphony of Coral, Coves and Conservation
The Similan Islands are an Andaman Sea treasure - a cluster of nine abrupt granite isles, crowned with powdery beaches and encircled by some of Thailand’s finest reefs. Declared a national park in 1982, they are now a protected sanctuary - intensely biodiverse, fiercely beautiful, and managed for both wonder and renewal.From the main pier in Khao Lak, boats carry you into a world of submerged gardens - staghorn and soft corals waving beneath transparent waves, where turtles glide and reef sharks patrol. Snorkeling at Anita’s Reef or Barracuda Point reveals lively schools and potential manta or whale shark visits between December and April. On shore, granite boulders sculpt shaded coves; easy hikes reward with panorama across deep-blue oceans dotted with tiny isles.
The park is strictly managed - open only from October 15 to May 15 - to let marine ecosystems regenerate during the monsoon closure. There are no overnight stays, increasing the island’s remoteness and purity (liveaboards remain anchorage options offshore) . The result is a rare sense of paradise - the kind born from balance: traveler access, ecosystem care, and sustained wonder.
Highlights
- Dive or swim among neon coral pinnacles at East of Eden
- Paddle a kayak across secluded bays with transparent, shallow reefs
- Take a guided marine biology briefing on reef health and protection

Anne Nguyen
Content & Social Media Specialist
Why travel with Viland?

Crafted with you in mind
Each journey begins with listening. We design experiences that reflect your pace, your passions, and the stories you wish to uncover. With thoughtful guidance and care, every detail is curated just for you.

Authentic experiences
Our trips are crafted by a team who truly knows the destinations - from seasoned travel designers to local guides with years of on-the-ground experience. They bring you beyond what the normal booked guides always do, to places and stories only insiders can show. Every detail is personal, every moment is one of a kind.

Leave a Positive Trace
Every Viland luxury journey is designed with care - for people and the planet. By choosing local partners, supporting community-led projects, and prioritizing low-impact travel, you help preserve cultures and natural beauty for generations to come.
Meet our team
When to visit?
Dry Season
October 15 - May 15: Clear, calm seas (26–30 °C), ideal for snorkeling and diving.Closed Season
May 16 - October 14: Islands close to visitors to safeguard reef ecosystems from storms and human impact.Festivals/Seasonal Highlights
May - October (Marine Conservation Season), December - April (clear-water dives, manta and whale shark sightings), April/October (darker mornings, fewer boats, and pristine reef access)
Plan your trip Thailand
No matter how you imagine your trip - restful, adventurous, or deeply cultural - our travel designers are here to bring it to life with care and local insight.
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Plan with Confidence
Traveling today calls for thoughtful planning, and with Viland Travel, you’ll never have to navigate it alone. Our experienced team is here to support you at every step - from the first idea to the final farewell.Should unexpected changes arise, we’ll do our best to adjust your plans smoothly, find the right alternatives, and ensure you’re always cared for. And if no solution feels right, our money-back guarantee offers added peace of mind - because your journey should feel as secure as it is inspiring.
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