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Thailand

Asia

Capital: BangkokNovember to February

285

Documented species

14

Parks and reserves

10

Dive sites

Thailand runs from the forested mountains of the north, an extension of the eastern Himalaya, down to the Malay peninsula, covered in equatorial rainforest and flanked by two very different seas: the Gulf of Thailand and the Andaman Sea. In the west, the Thung Yai and Huai Kha Khaeng forest complex holds the largest block of protected forest in mainland South-East Asia, with tigers, elephants, gaur and banteng. Khao Yai, the country's first national park, protects monsoon forest a few hours from Bangkok and is famous for its hornbills. The Andaman coast contributes limestone islands, reefs and seagrass meadows with dugongs, and the southern mangroves work as nurseries for the coastal fishery.

Nature in Thailand

National animal: The Asian elephant, Thailand's national animal

Did you know?

Hornbills have one of the most extreme breeding strategies in the bird world: the female shuts herself inside a tree hollow and seals the entrance with mud and droppings until only a narrow slit is left. There she stays walled in for months, moulting her feathers and feeding the chicks with whatever the male passes through the gap. If the male dies, the whole brood is lost.

Biodiversity profile

Conservation

Kitti's hog-nosed bat, discovered in 1974, is one of the smallest mammals in the world, weighing barely two grams. Hornbill nest adoption programmes, in which communities guard the trees in exchange for compensation, have drastically reduced poaching.

Where and when to watch wildlife

Khao Yai between February and May for hornbills and elephants. The Similan and Surin islands between November and April for reefs and whale sharks. Kaeng Krachan at dawn for primates and birds.

Parks and reserves

National Park

Kaeng Krachan

Thailand's largest national park; a UNESCO World Heritage Site since 2021 as part of the Kaeng Krachan forest complex

See park
National Park

Khao Yai

Thailand's first national park, declared in 1962

See park
National Park

Thap Lan

Thailand's second-largest national park, a component of the Dong Phayayen-Khao Yai Forest Complex.

See park
World Heritage Site (Natural)

Thungyai-Huai Kha Khaeng

The largest conservation area in mainland South-East Asia, holding almost every forest type in the region.

See park
National Park

Ao Phang Nga

A maze of limestone towers rising from the Andaman Sea, among the best-preserved mangroves in Thailand.

See park
National Park

Doi Inthanon

It protects the highest peak in Thailand, nicknamed "the roof of Thailand", with twin pagodas dedicated to the king and queen

See park
National Park

Doi Suthep-Pui

Chiang Mai's mountain, with montane forest, vegetation gradients and the most venerated Buddhist temple in the north.

See park
National Park

Erawan

A seven-tier waterfall over travertine in Kanchanaburi, one of Thailand's most visited parks.

See park
Marine National Park

Similan Islands

Repeatedly ranked among the ten best diving destinations in the world; closed for six months a year to let the reef recover naturally

See park
National Park

Khao Sam Roi Yot

Thailand's first coastal national park, with limestone hills, marshes and a cave holding a royal pavilion.

See park
Marine National Park

Mu Ko Ang Thong

An archipelago of forty-two limestone islands in the Gulf of Thailand, with a salt lake hidden in a karst crater.

See park
Marine National Park

Mu Ko Surin

Five Andaman Sea islands with some of the finest reefs in Thailand and the Moken community.

See park
National Park

Khao Sok National Park

Tropical rainforest reckoned one of the oldest in the world, with spectacular limestone karst formations and Cheow Lan Lake.

See park
National Park

Phu Kradueng

A shoe-shaped sandstone plateau, reachable only by a demanding 9 km climb; closed four months a year to let the ecosystem recover

See park

Diving and snorkelling

Deep pinnacle

Hin Daeng / Hin Muang

Hin Daeng ("red rock") and Hin Muang ("purple rock") form the largest vertical wall in Thailand, with caves and caverns and a covering of soft coral that gives the two pinnacles their names.

See dive site
Pinnacle/Granite cave

Similan Islands

Granite islands with huge boulders, swim-throughs between the rocks and slopes, in warm, clear water. Together with the Surin Islands they form the core of diving in the Thai Andaman Sea.

See dive site
Hard coral reef

Surin Islands

A marine national park near the Myanmar border, with some of the best preserved hard corals in Thailand.

See dive site
Pinnacle

Richelieu Rock

A horseshoe-shaped limestone pinnacle out in open water, with no island around it. It breaks the surface at low tide and is submerged at high. There are two further inner columns on either side of the central one.

See dive site
Pinnacle

Chumphon Pinnacle

An underwater pinnacle near Koh Tao, one of the finest deep dives in the Gulf of Thailand.

See dive site
Cave/Wall

Koh Ha (Krabi)

Five limestone islets with an inner lagoon and underwater caves lit by shafts of sunlight.

See dive site
Coral reef

Koh Lipe

A small island near the Malaysian border, known as the "Maldives of Thailand" for its turquoise water.

See dive site
Reef/Pinnacle

Koh Phi Phi

An archipelago made iconic by the film The Beach, with the nearby underwater pinnacle of Hin Daeng and calcite reefs.

See dive site
Reef/Pinnacle

Koh Tao

A world mecca of dive certification for its affordable prices and warm, sheltered water.

See dive site
Coral reef

Racha Yai

An island near Phuket with easily reached turquoise water, popular for certifications and try-dives.

See dive site

Similar countries

Where else might I want to travel?

Indonesia

Same region: South-East Asia

Vietnam

Same region: South-East Asia

Malaysia

Same region: South-East Asia

Philippines

Same region: South-East Asia

Species documented in Thailand

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Class
Family
Habitat
Diet
Conservation

285 species found

Related guides

  • Where to see Turtles and Tortoises in Thailand11 species
  • Birds in Thailand4 species

Keep exploring

Based on what we already know about Thailand.

ParkKaeng KrachanDivingHin Daeng / Hin Muang

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Giant ClamCritically Endangered

Giant Clam

Tridacna gigas

Helmeted HornbillCritically Endangered

Helmeted Hornbill

Rhinoplax vigil

Staghorn CoralCritically Endangered

Staghorn Coral

Acropora cervicornis

Chinese PangolinCritically Endangered

Chinese Pangolin

Manis pentadactyla

Sunda PangolinCritically Endangered

Sunda Pangolin

Manis javanica

White-winged DuckCritically Endangered

White-winged Duck

Asarcornis scutulata

Scalloped HammerheadCritically Endangered

Scalloped Hammerhead

Sphyrna lewini

Great HammerheadCritically Endangered

Great Hammerhead

Sphyrna mokarran

Oceanic Whitetip SharkCritically Endangered

Oceanic Whitetip Shark

Carcharhinus longimanus

Hawksbill TurtleCritically Endangered

Hawksbill Turtle

Eretmochelys imbricata

Blue WhaleEndangered

Blue Whale

Balaenoptera musculus

BantengEndangered

Banteng

Bos javanicus

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