Best Beaches in Thailand: Island by Island Guide

This guide is part of our Thailand Travel Guide — start there for the overview, itineraries and costs.

Thailand's beaches are the stuff of legend—powdery white sand, turquoise waters, and dramatic limestone cliffs. But with hundreds of islands and thousands of miles of coastline, how do you find your perfect patch of paradise? This definitive guide covers the best beaches for every type of traveller in 2025.

1. Railay Beach, Krabi: The Climber's Paradise

Only accessible by boat, Railay Beach is a stunning peninsula surrounded by towering limestone cliffs. It's a world-famous destination for rock climbing, but even if you're not a climber, the breathtaking scenery and laid-back vibe make it a must-visit.

• How to Get There: Take a long-tail boat from Ao Nang or Krabi Town.
• Where to Stay: Rayavadee (Luxury), Railay Bay Resort & Spa (Mid-Range).

2. Maya Bay, Koh Phi Phi Leh: The Famous One

Made famous by the movie "The Beach," Maya Bay is an icon of Thailand. After being closed for several years to allow for ecological recovery, it has reopened with strict rules to protect its natural beauty. The bay is now a no-swimming zone, but you can admire its stunning beauty from the boat or a designated viewing area.

• How to Get There: Day trip by speedboat or long-tail boat from Phuket or Koh Phi Phi Don.

3. Freedom Beach, Phuket: The Hidden Gem

Just a short boat ride from the bustling Patong Beach in Phuket lies Freedom Beach, a pristine cove that feels a world away. This 300-meter stretch of white sand is one of the most beautiful and least crowded beaches on the island.

• How to Get There: Take a long-tail boat from the southern end of Patong Beach.

4. Bottle Beach, Koh Phangan: The Backpacker's Escape

For those looking to escape the Full Moon Party crowds on Koh Phangan, Bottle Beach is a secluded paradise. It's a bit of a journey to get here (either by boat or a challenging jungle trek), but you'll be rewarded with a quiet, beautiful beach and a handful of rustic bungalows.

5. White Sand Beach, Koh Chang: The Family Favorite

White Sand Beach (Haad Sai Khao) is the most popular and developed beach on Koh Chang. Its gentle slope and calm waters make it perfect for families with children. You'll find plenty of resorts, restaurants, and shops along the beach.

6. Sunset Beach, Koh Lipe: The Romantic Getaway

As its name suggests, Sunset Beach (Haad Pramong) on the tiny island of Koh Lipe is the perfect place to watch the sun go down. It's a quiet, romantic spot with a few chilled-out bars and restaurants.

7. Donald Duck Bay, Similan Islands: The Snorkeler's Dream

Located in the Similan Islands National Park, Donald Duck Bay is named for a rock formation that resembles the famous cartoon character. The bay offers some of the best snorkeling in Thailand, with crystal-clear water and an abundance of marine life.

8. Ao Manao, Prachuap Khiri Khan: The Local's Secret

If you want to experience a beach beloved by Thais and off the main tourist trail, head to Ao Manao (Lime Bay). Located on a military base, it's a clean, beautiful, and safe beach with calm waters and friendly dusky langur monkeys.

9. Lamai Beach, Koh Samui: The Perfect Blend

While Chaweng is Koh Samui's busiest beach, Lamai Beach offers a more relaxed vibe with a great mix of restaurants, bars, and accommodation. It's the perfect blend of beautiful scenery and convenience.

10. Kantiang Bay, Koh Lanta: The Laid-Back Luxury

Kantiang Bay is a stunning, crescent-shaped bay on the southern end of Koh Lanta. It's home to a few high-end resorts and offers a sense of quiet, laid-back luxury.

When to Visit Thailand's Beaches

• Andaman Coast (Phuket, Krabi, Koh Lipe): The best time is the dry season from November to April.
• Gulf Coast (Koh Samui, Koh Phangan): The best time is from January to September. Avoid October and November, which are the rainiest months.

Conclusion

From lively party shores to secluded romantic coves, Thailand's beaches offer something for every traveler. Use this guide to find your own slice of paradise in the Land of Smiles.

Andaman or Gulf? Pick Your Coast First

This is the single decision that determines whether you get postcard water or grey chop, and most disappointing beach trips come down to getting it wrong. Thailand has two coasts with opposite seasons.

The Andaman coast (Phuket, Krabi, Phi Phi, Koh Lanta, the Similans) is at its best from November to April. Flat water, 30m visibility, reliable sun. From May to October the southwest monsoon brings swell, red flags on the beaches and closed dive sites.

The Gulf coast (Koh Samui, Koh Phangan, Koh Tao) runs roughly opposite: February to September is the sweet spot, with the heaviest rain arriving October to December. This is why you can find good beach weather in Thailand in July — you just have to be on the correct side of the peninsula.

The Beaches Worth Building a Trip Around

Railay Beach West, Krabi

Limestone cliffs on three sides, only reachable by longtail from Ao Nang (100 THB, 15 minutes). West beach for sunset and swimming, Phra Nang beach around the headland for the cave shrine and the best sand. Stay overnight — the day-trip crowd is gone by 5pm and it becomes a different place.

Freedom Beach, Phuket

A 300m arc of white sand below Patong that you reach by longtail (about 1,500 THB return per boat) or a steep 20-minute jungle track. Clear water, very few people, no facilities to speak of. Bring water.

Maya Bay, Koh Phi Phi

Reopened with strict limits after years of closure — no boats anchor in the bay now, you enter from the rear jetty, and there is no swimming in the bay itself. Go on the 7am trip or don't bother.

Koh Lanta's west coast

Long Beach and Kantiang Bay. Wide, flat, sunset-facing, and Lanta remains the most relaxed of the big Andaman islands — the whole west side is a string of beaches you can motorbike between in an afternoon.

Sairee Beach, Koh Tao

The cheapest place in the world to learn to dive, and the beach itself is a 1.7km strip with the shallow, calm water that makes it possible. Come for the Open Water course (around 11,000 THB, four days) and stay for the sunsets.

Bottle Beach, Koh Phangan

Reachable only by longtail from Chaloklum or a punishing 90-minute hike. Which is precisely why, on an island famous for full moon parties, it stays empty.

Ao Nuan, Koh Samet

Three hours from Bangkok and still overlooked. Samet's east coast beaches are small coves; Ao Nuan is the quietest, with a handful of bungalows and no road access.

Ko Kradan, Trang

If you want the Thailand of ten years ago, come here. A national park island with one long beach facing east into the sunrise, a fringing reef you can snorkel from the sand, and almost no nightlife at all.

Practical Beach Notes

• Longtail pricing is per boat, not per person. Split it and it's cheap.
• Jellyfish: box jellyfish appear on Gulf beaches, especially after rain. Vinegar stations exist on most; know where they are.
• Reef-safe sunscreen is required in Thai national marine parks — regular oxybenzone sunscreen is technically banned.
• Ferries stop in rough weather on both coasts. Never plan a same-day island-to-airport connection.
• Beach chairs are 100-200 THB a day on developed beaches and worth it in April heat.