Thailand, known for its stunning beaches, crystal-clear waters, and vibrant culture, is home to many beautiful islands that offer diverse experiences for every type of traveler.

In 2025, several islands are gaining popularity, each offering its unique charm, from tranquil retreats to adventure-filled getaways.

Let's look at some of the best islands to visit in Thailand in 2025!

1. Koh Phi Phi: The Iconic Paradise

Koh Phi Phi, a collection of islands located in the Andaman Sea, is one of Thailand’s most famous island destinations. Known for its dramatic cliffs, clear blue waters, and vibrant marine life, it remains a favorite among tourists.

How to Get There: You can reach Koh Phi Phi from Phuket or Krabi by ferry. The boat ride typically takes around 1.5 to 2 hours. Ferries depart frequently from both locations.

Fees: While there’s no entry fee to the island itself, a conservation fee of about $5 per person is charged upon arrival to help preserve the natural beauty of the islands.

Why Visit: Famous for its stunning beaches like Maya Bay, Koh Phi Phi offers excellent snorkeling, diving, and boat tours. Don't miss the spectacular viewpoint for a panoramic view of the island.

2. Koh Samui: Luxury Meets Nature

Koh Samui is Thailand’s second-largest island and is famous for its upscale resorts, beautiful beaches, and vibrant nightlife. The island offers a mix of relaxation and adventure.

How to Get There: Koh Samui has its own airport, with flights from Bangkok and other major cities in Thailand. You can also reach it by ferry from Surat Thani, although this takes longer.

Fees: Most beaches are free to access, but some private resorts and spas may charge for access. If you visit the famous Big Buddha temple, expect a small donation fee of about $2.

Why Visit: Koh Samui is ideal for those seeking both luxury and adventure. You can relax on beaches like Chaweng, visit the famous waterfall, or try activities like kayaking and zip-lining.

3. Koh Lanta: Tranquil and Beautiful

Koh Lanta is a more laid-back island in Krabi Province, known for its unspoiled beaches and slower pace of life. It’s the perfect destination for travelers looking for peace and relaxation.

How to Get There: Ferries run from Krabi to Koh Lanta, with the journey taking about 2 hours. You can also rent a car or scooter to explore the island.

Fees: There are no significant entry fees to Koh Lanta. However, you may encounter small fees for parking or visiting certain attractions like the Lanta Animal Welfare center.

Why Visit: Koh Lanta is great for nature lovers. The island offers a variety of wildlife, stunning beaches like Klong Dao, and opportunities for diving and snorkeling at nearby national parks.

4. Koh Tao: Diving Haven

Koh Tao is one of the best islands for diving in Thailand, famous for its colorful coral reefs and diverse marine life. It’s perfect for both beginners and experienced divers.

How to Get There: Koh Tao can be reached by ferry from Koh Samui or Chumphon. The boat ride typically takes around 1.5 to 2 hours.

Fees: Koh Tao is free to visit, but diving courses and equipment rentals are an additional cost. Expect to pay around $200 for an Open Water certification course.

Why Visit: Koh Tao is best known for its excellent diving spots, like Sail Rock. Even if you're not a diver, the island offers beautiful beaches, hiking trails, and relaxed vibes.

5. Koh Phangan: A Blend of Adventure and Tranquility

Koh Phangan is famous for its full moon parties, but it also offers serene beaches, waterfalls, and hiking trails for those looking to escape the crowds.

How to Get There: Koh Phangan is accessible by ferry from Koh Samui. Ferries depart frequently, with a journey time of about 30-45 minutes.

Fees: There is no entry fee to the island, though the Full Moon Party may have cover charges, which range from $10 to $30 depending on the event.

Why Visit: For party-goers, Koh Phangan’s Full Moon Party is a must. But the island also offers tranquil spots like Haad Yuan and Haad Thong Nai Pan, perfect for those looking for a peaceful retreat.

Thailand’s islands continue to captivate travelers with their natural beauty, activities, and cultural experiences. Whether you're after adventure, relaxation, or a mix of both, these five islands—Koh Phi Phi, Koh Samui, Koh Lanta, Koh Tao, and Koh Phangan—are perfect destinations to visit in 2025. Always check for updated travel information and fees before you go to ensure a smooth and enjoyable experience!