Skip to content
A turquoise bay ringed by granite boulders in the Similan Islands

Andaman Sea Islands & Hubs

Fifteen places, from Thailand’s busiest island to archipelagos almost nobody visits.

The Thai Andaman coast runs for several hundred kilometres, and its islands fall into natural groups. Around Phuket and Phang Nga Bay are the big-name sights and the international airport. Krabi, Phi Phi and Koh Lanta form the classic island-hopping heartland. The northern coast — Khao Lak, the Similan and Surin Islands, Ranong — is quieter and more seasonal. The far south has the small, sleepy islands of Trang and Satun.

Beyond Thailand, the same sea touches Langkawi in Malaysia, the Mergui Archipelago in Myanmar and India’s Andaman Islands. They are covered more briefly here, with honest notes on access.

Phuket & Phang Nga Bay

Kata Beach on Phuket’s west coast seen from the hillside above Phuket & Phang Nga Bay

Phuket

Thailand’s biggest island and the gateway to the Andaman Sea

A large, mountainous island joined to the mainland by a bridge, with an international airport, dozens of west-coast beaches, a handsome Sino-Portuguese old town and boats leaving every morning for Phi Phi, Phang Nga Bay and the Similans.

The rock pillar of Ko Tapu, known as James Bond Island, in Phang Nga Bay Phuket & Phang Nga Bay

Phang Nga Bay

Limestone towers, sea caves and James Bond Island

A shallow, sheltered bay between Phuket and Krabi studded with sheer limestone islands. Its hidden lagoons are explored by canoe through sea caves, and its best-known rock starred in a 1974 James Bond film.

Limestone islands of Phang Nga Bay seen across calm water from Koh Yao Noi Phuket & Phang Nga Bay

Koh Yao Noi & Koh Yao Yai

Two quiet islands in the middle of Phang Nga Bay

A pair of rural, mostly Muslim islands halfway between Phuket and Krabi, with rubber plantations, rice paddies, fishing villages and a front-row view of the bay’s limestone skyline — and very little nightlife.

Krabi, Phi Phi & Koh Lanta

Looking over the palm trees of Koh Phi Phi Don towards Koh Phi Phi Leh Krabi, Phi Phi & Koh Lanta

Phi Phi Islands

Maya Bay, Pileh Lagoon and a car-free island village

Six islands in a national park between Phuket and Krabi. Koh Phi Phi Don has the village, hotels and viewpoint; uninhabited Koh Phi Phi Leh holds Maya Bay and the cliff-walled Pileh Lagoon.

A limestone islet and headland rising from the sea at Railay, Krabi Krabi, Phi Phi & Koh Lanta

Krabi, Railay & Ao Nang

Cliff-backed beaches and the 4 Islands

The mainland coast of Krabi province: the resort strip of Ao Nang, the boat-access-only peninsula of Railay with its climbing cliffs and Phra Nang Beach, and day trips to the 4 Islands, the Hong Islands and the Tiger Cave Temple.

A longtail boat silhouetted at sunset off Klong Khong Beach, Koh Lanta Krabi, Phi Phi & Koh Lanta

Koh Lanta

Long beaches, slow days and big sunsets

A long, relaxed island south of Krabi whose west coast is a string of sunset beaches that get quieter the further south you go. It is a favourite with families and long-stayers and the springboard for Koh Rok and the Trang islands.

Northern Andaman coast

The balanced Sail Rock above Donald Duck Bay in the Similan Islands Northern Andaman coast

Similan Islands

Granite boulders, white sand and the coast’s clearest water

A chain of granite islands about 70 km off Khao Lak, protected as a national park and regarded as Thailand’s best diving. Open only in the dry season, with daily visitor quotas, and visited by day trip or liveaboard.

A quiet sandy bay backed by rainforest on North Surin Island Northern Andaman coast

Surin Islands

Shallow coral gardens and the Moken sea people

Five forested islands near the Myanmar sea border, with some of Thailand’s best shallow-water snorkelling, simple national-park accommodation and a Moken village. Richelieu Rock, the country’s most famous dive site, lies nearby.

A wide, empty stretch of sand at Khao Lak Northern Andaman coast

Khao Lak

Long, quiet mainland beaches and the pier for the Similans

A low-key stretch of mainland beaches about an hour north of Phuket airport, backed by forested hills. It is the closest base for the Similan and Surin Islands and for Khao Sok National Park inland.

A small wooded islet off a shallow sandy beach on Koh Phayam Northern Andaman coast

Ranong & Koh Phayam

Hot springs and a car-free island at the top of the coast

Thailand’s rainiest province and its least-visited Andaman corner: a small town with public hot springs, and offshore the laid-back island of Koh Phayam, with no cars, cashew orchards and two long beaches.

Trang & Satun islands

White sand and clear turquoise water on Koh Kradan Trang & Satun islands

Trang Islands

The Emerald Cave, Koh Kradan and Koh Ngai

A cluster of small, quiet islands off Trang province: Koh Mook with its Emerald Cave, reached by swimming through a sea tunnel; Koh Kradan with its long white beach and house reef; and little Koh Ngai.

A white sandbar and a longtail boat in turquoise water at Koh Lipe Trang & Satun islands

Koh Lipe & Tarutao

A tiny, car-free island in Thailand’s far south

Koh Lipe is the small inhabited island inside Tarutao National Marine Park, close to the Malaysian border: three white beaches, a walking street and longtail trips to the reefs of Koh Adang and Koh Rawi.

Beyond Thailand

The curved Langkawi Sky Bridge suspended above the rainforest Beyond Thailand

Langkawi (Malaysia)

Malaysia’s duty-free island, a ferry ride from Koh Lipe

An archipelago off the north-west corner of Malaysia with rainforested hills, a cable car and sky bridge, mangrove boat trips and the long beach of Pantai Cenang — and a seasonal ferry link to Koh Lipe.

A wooden fishing boat between forested islands in the Mergui Archipelago Beyond Thailand

Mergui Archipelago (Myanmar)

Hundreds of barely visited islands — when access allows

A vast scatter of forested islands off southern Myanmar, home to the Moken sea people and traditionally visited only by liveaboard from Kawthaung, opposite Ranong. Check the current situation carefully before planning.

Tall rainforest trees behind the sand of Radhanagar Beach, Havelock Island Beyond Thailand

Andaman Islands (India)

Havelock, Neil and Port Blair on the far side of the sea

India’s island territory on the western edge of the Andaman Sea, reached by air from the Indian mainland. Most visitors combine Port Blair’s colonial history with the beaches and reefs of Havelock (Swaraj Dweep) and Neil (Shaheed Dweep).

How to combine them

Most trips work best with two or three bases rather than a new island every night. Natural pairings are Phuket + Krabi, Krabi + Koh Lanta, Khao Lak + Phuket and Koh Lanta + Trang islands + Koh Lipe. Our island-hopping guide shows which boats link which islands, and the travel guide has a table of which island suits whom.

Whatever you choose, check the season first: the when-to-visit page lists what closes in the monsoon.

Plan your days on the Andaman Sea

Turn a beach holiday into an island-hopping trip

Paddle into the sea caves of Phang Nga Bay, step onto Maya Bay before the crowds, snorkel the Similan reefs and watch the sun set behind Krabi’s limestone islands. Compare the best-rated boat trips and book in a couple of taps.