5 off-the-beaten-path Thai islands
Far from the most visited islands, Thailand still hides small paradises. Here are 5 southern islands to explore for wild beaches and a genuine sense of escape.
For decades, Thailand's coastlines have faced overtourism. While local authorities have become aware of the phenomenon and implemented measures to preserve their lands, the country remains a highly sought-after destination. Fortunately, secret islands and forgotten archipelagos have been spared and have preserved their wild beauty! Looking to discover them and enjoy their tropical beaches far from the crowds? Discover 5 southern islands to escape mass tourism in Thailand.
1 - Koh Laoya: an off-the-beaten-path archipelago near Koh Chang

Koh Laoya is an archipelago of three islands, located at the southern tip of Koh Chang. Inner Laoya Island is the largest of them. Also called Koh Laoya Nai, it features a white sand beach bordered by lush forest. Little visited by tourists, it attracts locals on weekends. The rest of the week? Its paradisiacal landscapes are nearly deserted! An opportunity to fully enjoy its beauty, far from the bustle of the city (in a country nonetheless populated by nearly 69,000 inhabitants!).
The island has only one resort: Laoya Coco Island (a reservation is necessary to spend the night there). The establishment organizes diving excursions. The two other islets of the archipelago, Middle Laoya and Lower Laoya Island, are true desert islands with no hotels or tourist facilities! What's on the agenda? Swimming in sparkling waters, boat rides, and exploration of coral gardens… To reach all three islands, you'll need to take a shuttle from Koh Chang.
2 - Koh Phayam: a hidden islet in the heart of the Mergui Islands

Bordered by the Andaman Sea, Koh Phayam is a wild island of 15 km². Located in Ranong Province, it is home to wonderful small white sand beaches. Among them? The beach at Hin Talu, considered the most beautiful spot to watch the sunset!
In the heart of this idyllic setting, you'll discover Moken Village. Named "The village of sea gypsies" in English, this place is a settlement where some locals live. Still authentic, the village is nestled in the forest. To reach it you'll need to take a walk through the jungle (where you can spot hornbills and many other bird species living in the Thai canopy). Note that the village is also accessible by beach at low tide. A tip? Bring insect repellent!
🇹🇭 Want to explore Thailand's southwestern coast? Heading to Koh Phi Phi!
3 - Koh Khai: an ideal destination to escape mass tourism in Thailand

The three Koh Khai islands are located about fifteen minutes away (by speedboat) from Phuket. Little paradises on earth, they are renowned for their paradisiacal beaches and schools of colorful fish.
Accessible from Phuket or Koh Yao Yai: Khai Nok, Khai Nai, and Khai Nui are highly popular during the summer season (December and January). To enjoy these jewels of nature, consider visiting during low season to avoid crowds. The bright side? Sea temperatures range between 25° and 30°C year-round!
4 - Koh Surin: an authentic land in the heart of the Surin Islands

The five Surin islands form an archipelago located 60 km from the mainland. The most important are Koh Surin Nuea (northern island) and Koh Surin Tai (southern island). To preserve the beauty of the area, authorities limit and monitor visits. Thanks to these measures, you'll discover landscapes of exceptional purity!
Trekking enthusiasts can admire all their specifics and riches through hiking trails, while divers can explore their underwater treasures (and their legendary coral reef!) through snorkeling. The most beautiful diving spot in the world? Richelieu Rock! A rock in the middle of the sea, approximately 10 km southwest of Koh Surin.
🇹🇭 Fancy exploring a secret island? Destination Ko Ngai!
5 - Koh Adang: a Thai paradise away from the crowds

Koh Adang is a forested island known for its "Pirate's Waterfall". Rarely visited by tourists, you can fully enjoy this Eden and its freshwater cascade – which was once the only source where pirates could quench their thirst! It's easily accessible after a short excursion into the jungle.
The second largest island in Tarutao National Marine Park (which includes 51 islets!), Koh Adang is also a magical spot for snorkeling. For those who dream of simply listening to the sound of waves (without hoarse churro vendors or sand being flung in your face by inconsiderate travelers)… Enjoy!
Good to know
The island is accessible by taxi boat or kayak.
Note that entry to the island costs 200 baht (approximately $5.50 – the entrance fee for Koh Tarutao National Park). It's also possible to reserve one of the 12 bungalows for the night (around $15).
Frequently asked questions
Low season (May to October) is ideal for avoiding crowds, with sea temperatures between 25-30°C year-round.
Depending on which island you choose, you'll need to fly to Phuket or Koh Chang, then take local ferry services.
Plan for $30-80 per day depending on the island, including basic accommodation, local meals, and transportation.
Yes, all offer excellent snorkeling spots. Koh Surin features the famous Richelieu Rock site.


