Where is Phu Laenkha National Park?

Phu Laenkha National Park is in Chaiyaphum Province in northeastern Thailand. It covers parts of Mueang Chaiyaphum, Ban Khwao, Nong Bua Daeng and Kaset Sombun districts.

What is Phu Laenkha famous for?

It is best known for Mo Hin Khao's monumental sandstone formations, Pha Hua Nak viewpoint, mountain forest, ancient cycads, hiking and camping.

Can I camp at Phu Laenkha?

Yes. The Department of National Parks lists a designated camping area and park accommodation, subject to availability and current operating conditions.

Can I see sunrise and stars at Phu Laenkha?

Pha Hua Nak is a principal sunrise viewpoint and has strong dark-sky potential. Visibility depends on access, weather, cloud cover and light conditions.

Is there hiking at Phu Laenkha?

Yes. Routes range from shorter nature walks to the approximately 12.33-kilometre San Phaya Naga trail, which requires proper preparation and confirmation of current access.

When is the best time to visit Phu Laenkha?

October through January is generally most comfortable for hiking and camping. The rainy season brings greener forest and more active waterfalls, but trails and rocks can be slippery.

Is Mo Hin Khao the same as Phu Laenkha National Park?

No. Mo Hin Khao is one of the major attractions inside Phu Laenkha National Park, which contains many other viewpoints, forests, trails, cliffs, caves and waterfalls.

Phu Laenkha National Park Guide: Mo Hin Khao

Stone, Forest & Horizon

Phu Laenkha is one of Chaiyaphum’s most distinctive mountain landscapes — a place where monumental stone formations, ancient-looking plants and long views come together.

The park is best known for Mo Hin Khao, but its character extends far beyond that photographed landmark. Travel deeper and open rock fields give way to forest, cliffs and mountain trails. At Pha Hua Nak, the land unfolds into layered ridges and valleys; higher areas support unusual plant communities and old cycads.

For travellers interested in nature, photography, hiking, geology and quiet mountain scenery, Phu Laenkha offers a different side of Isan.

Discover the stones. Feel the forest. Look beyond the horizon.

At a Glance

Official Name: Phu Laenkha National Park
Thai Name: อุทยานแห่งชาติภูแลนคา
Location: Chaiyaphum Province, Northeastern Thailand
Region: Isan
Area: Approximately 200.50 km² / 125,312.50 rai
Established: 27 July 2007 · Thailand’s 108th national park
Highest Point: Approximately 725 metres above sea level
Landscape: Mountains, plateaus, sandstone formations, cliffs and forest
Highlights: Mo Hin Khao, Pha Hua Nak, Phu Laenkha Viewpoint and Thousand-Year Cycad Forest
Best For: Nature, photography, hiking, camping, families and Chaiyaphum road trips

The park covers parts of Mueang Chaiyaphum, Ban Khwao, Nong Bua Daeng and Kaset Sombun districts.

Why Visit Phu Laenkha?

Phu Laenkha is not simply a viewpoint destination. Its identity comes from the relationship between rock, forest and altitude. Huge pale sandstone formations dominate one area; elsewhere the terrain rises into forested mountains, valleys and cliffs.

The variety rewards travellers who want to explore instead of stopping for one photograph.

Mountain and cliff viewpoints
Forest and nature-study trails
Natural arches and sandstone formations
Caves and seasonal waterfalls
Grassland and native plant communities
Ancient cycads and wildlife habitat
Camping and night-sky viewing
Long-distance hiking routes

The Landscape of Phu Laenkha

Mountains, plateaus, slopes and valleys rise from about 200 to 725 metres above sea level. The northern park contains steeper slopes, cliffs and valleys, while parts of the south descend more gradually. This varied topography supports several forest environments.

A Landscape of Sandstone

Weathering and erosion have shaped the sandstone into pillars, cliffs, boulders, terraces and openings that can look almost architectural. Rain penetrates cracks; wind, temperature changes and flowing water gradually widen them. These monumental forms are entirely geological, not human-built.

The Stone Landmark of Chaiyaphum

Mo Hin Khao

Mo Hin Khao is the park’s most recognisable attraction: a group of large pale sandstone formations rising from open terrain. Their scale, shape and isolation make them resemble enormous stone monuments.

Although comparisons are sometimes made with famous stone landscapes elsewhere, Mo Hin Khao has its own geological character rooted in the sandstone of northeastern Thailand.

Why do the rocks look white?

The pale appearance comes from exposed sandstone, but weather and light continually change it. Morning brings soft shadows, late afternoon adds warmth and contrast, and rain darkens the surfaces to reveal more texture.

Beyond Mo Hin Khao: The Rock Forest

Mo Hin Khao is one part of a much larger geological landscape. Rock fields and naturally eroded boulders appear throughout the park, with local names inspired by their shapes.

Prasat Rock Forest: Weathered forms that evoke towers and monumental architecture.
Hong Fa & Chan Daeng Rock Forests: Groups of distinctive sandstone forms set among seasonal vegetation.
Natural Stone Gate: An opening formed as erosion weakened sandstone along cracks and softer rock, creating a dramatic natural frame.
Pha Orchid & Pha Pae: Cliff landscapes where rock, forest plants and open views meet.

Viewpoints & Dark Skies

Pha Hua Nak: A mountain-ridge viewpoint known for sunrise, sunset, valley mist, camping and night skies. In suitable weather, the surrounding mountains emerge through low mist as the first light reaches the landscape.
Phu Laenkha Viewpoint: A quieter mountain setting associated with nature study and youth-camp activities, offering broad countryside views and connections to nature-study routes.

A Dark Sky Experience

In 2022, Pha Hua Nak received 92 out of 100 during an assessment for Dark Sky Park status involving the National Astronomical Research Institute of Thailand (NARIT). At the time of the DNP report, formal registration was still pending.

High elevation, an open horizon and relatively low light pollution can create excellent conditions for stargazing and astrophotography. Weather and cloud cover remain decisive, and visitors should always follow current lighting, camping and nighttime-access rules.

The Thousand-Year Cycad Forest

Known locally as Pa Prong Phan Pi, the park’s Thousand-Year Cycad Forest protects old cycad communities in a higher landscape. The area is valued as a plant genetic resource and is associated with Prong Tao Chang, an unusual cycad of Chaiyaphum’s highlands.

The area has also been linked with the discovery of Khao Tok Phu Laenkha, reported as a plant species new to science. That makes the site important not only for visitors, but for botany and conservation.

Forests, Plants & Wildlife

Dry Dipterocarp Forest: Open, strongly seasonal woodland with Dipterocarpus, Shorea, Hopea, Burmese padauk, Afzelia, Terminalia, Dalbergia and seasonal grasses.
Dry Evergreen Forest: Denser evergreen vegetation in valleys, along streams and where soil moisture remains higher.
Mixed Deciduous Forest: Diverse seasonal forest that sheds leaves in the dry months and changes rapidly with the first rains.
Wildlife: The park records rabbits, monkeys, wild boar, squirrels, flying squirrels, civets, mongooses, birds, reptiles, freshwater fish and insects. Sightings are never guaranteed.

A Full-Day Mountain Route

The San Phaya Naga Nature Trail

In October 2024, Department of National Parks officials surveyed the San Phaya Naga Nature Trail as an ecotourism and cultural route. It connects Pha Hua Nak — imagined as the naga’s “head” — with Pha Orchid, the “tail”. The route covers approximately 12.33 kilometres and takes around 7 hours.

The trail passes a banyan growing on rock, wildlife signs, natural water sources, “Naga Scale” formations, high cliffs, crocodile-shaped rocks, fern forest and panoramic viewpoints.

These naga interpretations belong to the cultural relationship between people and place; they should be appreciated as landscape stories rather than geological claims.

Waterfalls & Caves

Tat Hin Dat Waterfall: A seasonal waterfall whose strength changes significantly with recent rainfall.
Tat Ton & Tat Ton Noi Waterfalls: Seasonal streams are liveliest during wetter months and may be substantially reduced in the dry season.
Tham Phra & Tham Kluea: Caves and rock shelters forming part of the park’s geological and ecological landscape.

Never enter a restricted cave or disturb bats, birds, insects or other cave-dwelling wildlife.

Seasons & Best Time to Visit

Cool season · October–January: Generally the most comfortable period for hiking, camping and mountain viewpoints. Cool mornings may bring atmospheric valley mist.
Hot season · February–May: Open sandstone becomes very hot around midday. Start early, take shade and carry extra water.
Rainy season · June–September: Forest turns greener and waterfalls become more active, but trails and rock surfaces can be slippery and mountain weather can change quickly.

Camping: October–January
Green landscapes: rainy season
Sunrise & mist: cooler months
Stargazing: dry, clear nights

Current Tourism Season

For the 2026 season, DNP announced that Phu Laenkha National Park reopened for tourism and overnight stays on 1 May 2026, following its annual closure from 1 March to 30 April for forest recovery and seasonal management.

Camping & Accommodation

Camping is one of the best ways to experience the mountain atmosphere, sunrise and night sky. DNP lists the designated Phu Laenkha Camping Ground and park accommodation known as Phu Laenkha 101 (Mo Hin Khao).

Availability, facilities and rules can change with weather and park management. Confirm and reserve through the official DNP booking system before travelling.

What to Do

Visit Mo Hin Khao. Walk around the famous sandstone pillars and photograph them from different angles.
Watch sunrise at Pha Hua Nak. Arrive early enough to see darkness give way to layered mountains.
Stay for the stars. On a clear night, observe responsibly with minimal artificial light.
Explore the Cycad Forest. Discover one of the park’s most unusual botanical landscapes where access permits.
Hike San Phaya Naga. Prepare for a full-day route and follow current park requirements.
Study the rock formations. Directional morning and afternoon light reveals their form and texture.
Seek seasonal waterfalls. Check flow and route safety after rain.
Slow down in the forest. Look for birds, insects, bark, ferns, orchids and changes in vegetation.

Photography Guide

Mo Hin Khao: Use a wide-angle lens to emphasise scale. A person photographed from a safe distance can give the pillars visual context.
Pha Hua Nak: Shoot wide for sunrise and layered mountains; use a telephoto lens to compress distant ridges and mist.
Night sky: Choose a clear night, minimise artificial lighting, use red light where suitable and respect all park rules.
Forest details: Look beyond grand views to bark, cycads, ferns, orchids, rock texture, insects and silhouettes.

How Long Should You Stay?

Half day: Best for a focused visit to Mo Hin Khao.
One day: Add selected viewpoints, nearby rock formations and a forest attraction.
Two days / one night: The better choice for sunrise, sunset, camping and the night sky.
Long-distance hiking: Allow a full day for San Phaya Naga and prepare for changing mountain conditions.

Suggested Routes

One-Day Route

Morning · Mo Hin Khao: Explore the major sandstone formations before temperatures rise.
Late morning: Continue to additional rock formations or viewpoints.
Afternoon: Choose a forest, botanical or seasonal-waterfall stop according to current conditions.
Late afternoon · Pha Hua Nak: Watch the light change across the mountains and sunset where operating conditions permit.

Two-Day Experience

Day 1 · Stone & Forest: Mo Hin Khao, nearby sandstone landscapes, forest attractions and camping or park accommodation.
Day 2 · Mountain & Horizon: Pha Hua Nak sunrise, a selected nature trail, Phu Laenkha Viewpoint and the Cycad Forest where access permits.

Travel Tips & Hiking Safety

Start early, especially in the hot season
Carry sufficient drinking water and food for long trails
Wear hiking shoes with reliable grip
Bring sun protection and insect repellent
Check weather and current route conditions
Keep back from cliff edges and wet sandstone
Tell others your route before a long hike
Stay on designated trails and follow ranger instructions

Rain can make exposed sandstone extremely slippery. Treat San Phaya Naga as a genuine wilderness-style hike, not a casual sightseeing walk.

Respect the Landscape

Phu Laenkha’s geological formations, forests and plant communities cannot be replaced.

Photograph the landscape. Do not collect it.

Never break, mark or remove rocks
Do not collect plants or flowers
Avoid climbing fragile rock surfaces
Never feed or disturb wildlife
Pack out every piece of waste
Leave natural and cultural features untouched

Who Is Phu Laenkha For?

Nature lovers: Several forest ecosystems and unusual botanical communities.
Photographers: Sandstone, cliffs, forest, mist, sunrise, sunset and night sky.
Hikers: Shorter nature routes and a longer full-day mountain trail.
Stargazers & campers: Designated overnight facilities and strong dark-sky potential.
Families: Accessible viewpoints and rock landscapes, with close supervision around cliffs and uneven terrain.
Road trippers: A natural centrepiece for a wider journey through Chaiyaphum.

A Different Side of Isan

Phu Laenkha adds mountains and sandstone to the temples, rice fields, food and festivals often associated with northeastern Thailand. Forest shifts dramatically with the seasons. Ancient plant communities survive on high ground. Natural monuments rise from open rock fields. After dark, the sky becomes part of the experience.

This is highland Isan: dry, seasonal, rocky, quiet and surprisingly dramatic.

Essential Information

National Park: Phu Laenkha National Park
Thai Name: อุทยานแห่งชาติภูแลนคา
Province: Chaiyaphum
Region: Northeastern Thailand · Isan
Area: Approximately 200.50 km² / 125,312.50 rai
Status: Thailand’s 108th national park · 27 July 2007
Highest Elevation: Approximately 725 metres
Famous Landmark: Mo Hin Khao
Major Viewpoint: Pha Hua Nak
Botanical Highlight: Thousand-Year Cycad Forest
Long Trail: San Phaya Naga · approximately 12.33 km
Activities: Sightseeing, hiking, camping, photography and stargazing
Camping: Available in a designated area, subject to current operations
Accommodation: Phu Laenkha 101 (Mo Hin Khao), subject to availability
Best General Season: Cool season for comfortable outdoor travel

Frequently Asked Questions

Where is Phu Laenkha National Park?: It is in Chaiyaphum Province and covers parts of Mueang Chaiyaphum, Ban Khwao, Nong Bua Daeng and Kaset Sombun districts.
What is Phu Laenkha famous for?: Mo Hin Khao, dramatic sandstone, Pha Hua Nak viewpoint, mountain forest and unusual plant communities.
What is Mo Hin Khao?: A group of large, naturally formed sandstone pillars and one of Chaiyaphum’s best-known landmarks.
Can I camp?: Yes. DNP lists a designated camping area and park accommodation, subject to availability and current conditions.
Can I see sunrise and stars?: Pha Hua Nak is a principal sunrise viewpoint with strong dark-sky potential. Actual visibility depends on weather, cloud cover, light and access.
Is there hiking?: Yes. Routes include nature-study walks and the approximately 12.33-kilometre San Phaya Naga trail, which requires substantially more preparation.
What is the highest point?: The park’s highest areas reach approximately 725 metres above sea level.
When should I visit?: Cooler months are most comfortable. Rainy season is greener with stronger waterfall flow, but trails and rocks may be slippery.
Is the park suitable for children?: Selected viewpoints and rock landscapes suit family visits, but children need close supervision around cliffs and uneven ground.
How many days should I spend?: One day suits a focused visit; two days and one night provide time for viewpoints, forest, sunrise and the night sky.
Is Phu Laenkha the same as Mo Hin Khao?: No. Mo Hin Khao is one major attraction inside a much larger national park.

Tat Ton National Park: Forest, rock and one of Chaiyaphum’s best-known waterfall landscapes.
Pa Hin Ngam National Park: Sandstone formations, viewpoints and seasonal Siam tulips in Chaiyaphum.
Sai Thong National Park: Cliffs, waterfalls and another seasonal wildflower landscape in the province.
Nature & Parks: Explore more protected landscapes in ThailandLover’s national-park collection.