National Parks

Thailand's best parks, islands and waterfalls — see where each one is and plan your visit.

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Leaflet Imagery © Esri
Khao Yai National Park

Khao Yai National Park

Nakhon Ratchasima

Mountains & Forests

Thailand's first national park and a UNESCO World Heritage rainforest — wild elephants, gibbons, and thundering waterfalls (Haew Narok, Haew Suwat) just 3 hours from Bangkok.

  • Wild elephant and gibbon spotting on night safaris
  • Haew Narok waterfall viewpoint
  • Pak Chong gateway town with easy transport
≈ 300–500 THB Nov – Feb

Hire a local guide for the best wildlife sightings, and drive slowly at dusk — elephants cross the main road.

Doi Inthanon National Park

Doi Inthanon National Park

Chiang Mai

Mountains & Forests

The roof of Thailand at 2,565 m — cloud-forest boardwalks, twin royal pagodas, Hmong mountain markets, and waterfalls along the scenic summit road.

  • Summit cloud-forest boardwalk (Ang Ka Luang)
  • Royal pagodas with valley views
  • Wachirathan and Sirithan waterfalls
≈ 300 THB Nov – Feb

Bring a jacket — the summit can drop under 10 °C in the cool-season mornings.

Kaeng Krachan National Park

Kaeng Krachan National Park

Phetchaburi

Mountains & Forests

Thailand's largest national park and a UNESCO site along the Myanmar border — one of Southeast Asia's top birdwatching destinations with miles of untamed rainforest.

  • Legendary birding and hornbills
  • Ban Krang camp and misty viewpoints
  • Kaeng Krachan reservoir and dam
≈ 300 THB Nov – Mar

The deep-forest roads require a ranger escort or guide — arrange permits at the headquarters the day before.

Khao Lak–Lam Ru National Park

Khao Lak–Lam Ru National Park

Phang Nga

Mountains & Forests

Where forested hills slide straight into the Andaman Sea — quiet beaches, coastal waterfalls, and the launching point for Similan and Surin island trips.

  • Quiet beaches without the crowds
  • Lam Ru waterfall trail
  • Gateway to the Similans
≈ 200 THB Nov – Apr

Combine with a Similan day trip — tour boats leave from the nearby piers at dawn.

Ao Phang Nga National Park

Ao Phang Nga National Park

Phang Nga

Islands & Marine

The signature limestone-karst bay of Thailand — sheer islands rising from emerald water, hidden "hong" lagoons, and the famous James Bond Island.

  • Sea-canoe tours through hidden lagoons
  • James Bond Island (Khao Phing Kan)
  • Koh Panyee stilted fishing village
≈ 300 THB Nov – Apr

Skip the James Bond Island crowds — canoeing the caves and hongs is the real experience here.

Mu Ko Similan National Park

Mu Ko Similan National Park

Phang Nga

Islands & Marine

Consistently ranked among the world's best dive sites — granite islands in turquoise water, rich coral reefs, and the famous Richelieu Rock.

  • World-class diving and snorkeling
  • Sail Rock viewpoint on Ko Similan
  • Richelieu Rock whale shark sightings
≈ 500 THB + boat fees Mid-Oct – mid-May

The park closes mid-May to mid-Oct for the monsoon — book day trips from Khao Lak early in high season.

Mu Ko Surin National Park

Mu Ko Surin National Park

Phang Nga

Islands & Marine

Coral gardens right off the beach, manta rays, turtle nesting, and the sea-nomad Moken village — quieter and snorkel-friendlier than the Similans.

  • Best beach-entry snorkeling in Thailand
  • Manta ray cleaning stations
  • Moken sea-nomad community
≈ 500 THB + boat fees Mid-Oct – mid-May

Snorkeling straight off Ao Mai Bay beats many dive sites — no certification needed.

Mu Ko Ang Thong National Park

Mu Ko Ang Thong National Park

Surat Thani

Islands & Marine

A 42-island archipelago of jungle-covered karsts near Koh Samui — the Emerald Lake viewpoint, kayaking, and easy day trips by speedboat.

  • Thale Nai emerald saltwater lake viewpoint
  • Sea kayaking around limestone islands
  • Easy speedboat day trips from Samui
≈ 300 THB Feb – Oct

Most tours leave from Koh Samui around 8am — book a day ahead in high season.

Ko Tarutao National Park

Ko Tarutao National Park

Satun

Islands & Marine

Thailand's oldest marine park and its wildest island — untamed jungle, mangroves, a pirate-era history, and empty beaches near the Malaysian border.

  • Raw jungle island with almost no development
  • Historic prisoner-of-war and pirate history
  • Closest point to Langkawi, Malaysia
≈ 200 THB Nov – Apr

Stay in the park's basic longhouse bungalows — day trips barely scratch the surface.

Erawan National Park

Erawan National Park

Kanchanaburi

Waterfalls & Lakes

Seven tiers of emerald waterfall tumbling through the forest — each tier has its own swimming hole, linked by an easy hiking trail.

  • Seven tiers, each with natural pools
  • Swimming in tier 1–5 pools
  • Easy day trip from Kanchanaburi town
≈ 300 THB Nov – Feb

Arrive before 9am — the lower tiers are packed by noon, and guard your snacks from the macaques.

Khao Sok National Park

Khao Sok National Park

Surat Thani

Waterfalls & Lakes

One of the oldest rainforests on Earth — dramatic limestone karsts over Cheow Lan Lake, floating bamboo bungalows, and jungle wildlife.

  • Overnight raft houses on Cheow Lan Lake
  • Ancient rainforest, older than the Amazon
  • Cave kayaking and jungle treks
≈ 300 THB (lake tours extra) Dec – Apr

The floating-bungalow overnight is southern Thailand's best experience — book the 2-day lake tour, not a day trip.

Entrance fees are foreign-visitor rates and estimates — marine parks like Similan and Surin close roughly mid-May to mid-Oct for the monsoon. Confirm current fees and opening dates with the Department of National Parks (DNP) before you go.