8 Thai Islands You Must Explore And 3 To Avoid

Thailand’s tropical gems are a backpacker’s paradise, offering everything from jaw-dropping beaches to wild nightlife and serene hideaways. But not all islands are created equal!
Here’s 8 Thai islands I’d recommend visiting, and the 3 that you might want to think twice about. Ready to plan your next adventure? Let’s go island-hopping!
8 Islands To Visit In Thailand
Koh Lipe

Near the southern tip of Thailand and close to the Malaysian border, Koh Lipe is a paradise for divers.
The island’s waters teem with whale sharks, seahorses, and vibrant corals.
Though areas like Walking Street can be bustling, Koh Lipe overall maintains a laid-back atmosphere that’s perfect for a relaxing getaway.
Koh Chang

Often overshadowed by the more popular Phuket, Koh Chang offers a refreshing change of pace.
Located in the Gulf of Thailand, about 120km south of Trat, this island is a lush retreat with opportunities for jungle treks and kayaking through mangrove forests.
It’s a gateway to nearby quieter islands and a perfect alternative for those seeking less crowded adventures.
Koh Ngai

Nestled off the coast of Trang in the Andaman Sea, Koh Ngai is a serene haven where emerald waves kiss lush, forested shores.
Though it’s on the pricier side, the island’s tranquillity is worth every penny. Explore the national park, where you might spot crab-eating monkeys, and don’t miss a boat trip to the nearby Koh Muk to marvel at the breathtaking Emerald Cave (Tham Morakot).
Koh Pha Ngan

While Koh Pha Ngan is renowned for its Full Moon Parties, it also boasts tranquil spots perfect for relaxation.
Situated off Thailand’s east coast, it features serene beaches ideal for sunset watching and is a hub for yoga retreats.
Nearby islands like Koh Tao offer additional exploration options, and a visit to Ang Thong National Marine Park promises encounters with dolphins, sea otters, and wild pigs.
Koh Lanta

Known for its stunning beaches, Koh Lanta is a picturesque island near the Krabi mainland.
With its nickname “Island of the Long Beaches,” it offers a mix of lively spots and serene hideaways.
Enjoy a cocktail at sunset, watch local fishermen at work, or kayak to the tranquil Talabeng Island.
Koh Samet

Just a short boat ride from Rayong, Koh Samet is a national park with minimal development, ensuring a peaceful experience.
Renting a bike to explore the island and unwinding on Sai Kaew Beach, also known as “Crystal Sand Beach,” are highlights of a visit here.
Koh Yao Noi

Despite its proximity to Phuket, Koh Yao Noi remains one of Thailand’s quietest islands. Rent a bicycle to explore its natural beauty, or join a local cooking class.
A day cruise through Phang Nga Bay adds a touch of adventure to your visit, making it a tranquil yet accessible destination.
Koh Tao

Known as “Turtle Island,” Koh Tao lies to the north of Koh Pha Ngan and offers incredible value for visitors.
This small island is a top spot for scuba diving, with colourful marine life and coral reefs. Even if you don’t encounter a turtle, the underwater scenery is stunning.
3 Islands To Avoid In Thailand
Koh Phi Phi
While undeniably beautiful, Koh Phi Phi, particularly the famous Maya Bay, has become a victim of its own popularity.
The island is often overcrowded with tourists, leading to an overwhelming and chaotic atmosphere that detracts from its natural charm.
Additionally, Koh Phi Phi has become quite commercialized, with higher prices for accommodation, food, and activities compared to more secluded and peaceful Thai islands.
Pattaya
Pattaya has earned a reputation for its nightlife and party scene, as is probably the home of Thailand’s sex industry.
Most backpackers now stay clear of Pattaya. The city is often crowded and the beaches are not as pristine as those found in other parts of Thailand, with concerns about water quality and pollution.
Also, the city’s rapid development has led to a loss of cultural charm, making it feel more like a busy urban centre than a relaxing beach destination.
Koh Samui
Koh Samui, once a tranquil paradise, has transformed into a bustling tourist hotspot, making it less appealing for those seeking a peaceful getaway. It’s an island I’d avoid going to.
The island’s rapid development has led to overcrowded beaches, increased traffic, and a surge in commercialized resorts and activities, detracting from its natural beauty.