What is Salawin National Park?

Salawin is a remote national park in western Mae Hong Son, where the Salawin River forms part of the Thailand–Myanmar border. It is a landscape of forested mountains, river journeys, remote viewpoints and riverside communities — less about ticking off attractions and more about distance, silence and landscape.

Where is Salawin National Park, and how large is it?

The park covers approximately 450,950 rai, or 721.52 km², across parts of Mae Sariang and Sop Moei districts in Mae Hong Son. It was established by Royal Decree on 9 November 1994 as Thailand's 78th national park. Mae Sariang is the practical base.

How do I take a boat trip on the Salawin River?

Long-tail boats leave from Ban Mae Sam Laep in Sop Moei District. Common routes run north toward Tha Ta Fang or south toward the Moei–Salawin confluence. Routes, prices and travel times change with river conditions, season and local regulations, so arrange the boat locally and confirm the route and safety conditions on the day.

What is Bu De Cha Viewpoint?

Bu De Cha is a viewpoint at approximately 895 metres above sea level. Its Karen name is commonly explained as 'close to the stars'. It is known for sunrise, mountain mist, camping and night-sky viewing, and is about 8 km from the park headquarters — around 30 minutes from Mae Sariang under current road conditions. December to February is a particularly favourable period.

When is Salawin National Park closed?

The regular closure period for Salawin's designated tourism and overnight areas is 1 June to 30 September. Additional temporary restrictions can apply: in 2026 the park closed forest areas from 1 February to 31 May for wildfire control. Always check the latest DNP announcement before travelling.

When is the best time to visit Salawin?

November to February is generally the best season — cool air, morning mist over the river and valleys, sunrise at Bu De Cha and clear night skies. March to May is hot and dry and can overlap with the northern smoke and wildfire season. June to October is the rainy season, when the regular seasonal closure applies.

Can I stay overnight in Salawin National Park?

Yes. DNP lists three accommodation zones: the National Park Headquarters (accommodation, tents and camping), Tha Ta Fang Ranger Station about 70 km from headquarters (accommodation, tents and camping) and Mae Sam Laep Ranger Station about 50 km from headquarters (accommodation). Confirm availability through the DNP reservation system before departure.

Salawin National Park, Mae Hong Son | Salawin River & Bu De Cha

Thailand at the Edge of the Map

Far from the crowded tourist routes of northern Thailand, the Salawin River moves quietly through one of Thailand’s most remote landscapes. Here, the river is not simply a scenic backdrop.

It forms part of the natural boundary between Thailand and Myanmar, flowing between forested mountains, rocky banks and small riverside communities.

This is Salawin National Park — a vast protected landscape in western Mae Hong Son where mountains, forest, river and borderland culture come together.

There are no grand resort developments here. Instead, there are long-tail boats, mist over the river, quiet forest roads, remote viewpoints, traditional communities and a landscape that still feels genuinely wild.

For travellers looking for a different side of Thailand, Salawin is less about ticking off attractions and more about experiencing distance, silence and landscape.

Distance. Silence. Landscape.

At a Glance

721.52 km²: Park area — 450,950 rai.
1994: Established 9 November, as Thailand’s 78th national park.
~1,027 m: Highest elevation, in the current DNP description.
~895 m: Bu De Cha, the park’s “close to the stars” viewpoint.
1 border: The Salawin River, between Thailand and Myanmar.

Official Name: Salawin National Park
Thai Name: อุทยานแห่งชาติสาละวิน
Province: Mae Hong Son
Districts: Mae Sariang & Sop Moei
Established: 9 November 1994 · National Park No. 78
Area: 450,950 rai / 721.52 km²
Main River: Salawin River
Border: Thailand–Myanmar
Highest Elevation: Approximately 1,027 m in the current DNP description
Signature Experiences: Salawin River · Mae Sam Laep · Tha Ta Fang · Bu De Cha viewpoint · forest landscapes · community life

The park covers approximately 450,950 rai, or 721.52 square kilometres, across parts of Mae Sariang and Sop Moei districts. It was formally established by Royal Decree published on 9 November 1994, becoming Thailand’s 78th national park.

The Soul of Salawin

A river older than borders

The defining feature of the park is the Salawin River, known locally in Mae Hong Son as the Khong River.

The Salawin rises in the highlands of Tibet/China before flowing through China and Myanmar and eventually forming part of the Thailand–Myanmar border in Mae Hong Son. Within the park, the river is framed by steep forested mountains and stretches of exposed rock and sand.

Its appearance changes dramatically with the seasons. During the cooler months, morning mist can settle over the river and surrounding forests. During the drier season, lower water levels reveal sandy banks, rocks and small riverside beaches. The landscape therefore never looks exactly the same from one visit to another.

The Salawin is not just something to photograph. It is the geographical and cultural centre of the park.

A Remote Corner of Northern Thailand

Salawin National Park occupies a mountainous landscape along the western side of Mae Hong Son. The terrain forms part of the Thanon Thong Chai mountain system, with ridges generally running north–south.

Elevation ranges from roughly 200 metres to more than 1,000 metres above sea level, while the park’s highest areas are in the northern part of the protected landscape. DNP currently describes the highest elevation as approximately 1,027 metres.

The mountains are important not only for scenery. They form watersheds for several rivers and streams:

Salawin River
Yuam River
Kong Kha River
Mae Ngae River
Han River

This makes the park part of a much larger ecological system extending across western northern Thailand.

Mae Sam Laep

บ้านแม่สามแลบ · the gateway to the Salawin River

For many travellers, Ban Mae Sam Laep is the most memorable place associated with Salawin National Park. The small riverside settlement lies in Sop Moei District, directly beside the Salawin River.

This is where the mountains suddenly open toward a broad international river. Across the water is Myanmar.

The atmosphere is very different from the tourist towns of northern Thailand. Mae Sam Laep has historically been associated with river trade and cross-border movement, and the community reflects the cultural complexity of this frontier landscape.

For visitors, it is primarily the gateway for experiencing the Salawin by boat.

The mountains open. The river widens. Across the water is Myanmar.

Cruising the Salawin River

Thailand’s borderland from the water

A long-tail boat journey is one of the most distinctive ways to experience the park. From Mae Sam Laep, local boats can travel along the river, following stretches of forest, rocky outcrops and sandy riverbanks. Two routes are commonly described:

North toward Tha Ta Fang: This route follows the Salawin upstream through a quieter section of the river. The landscape becomes increasingly dominated by forested hills and natural riverbanks.
South toward the Moei–Salawin confluence: Travelling downstream leads toward the area where the Moei River meets the Salawin River. The river landscape becomes particularly dramatic here because two major waterways converge near the international border.

Tha Ta Fang

ท่าตาฝั่ง · a quiet riverside outpost

Tha Ta Fang is another important riverside area within the park. It can be reached by boat from the Mae Sam Laep area and is associated with a more secluded section of the Salawin landscape.

The river here can reveal broad sandy stretches along the bank, creating an unusual contrast with the surrounding mountains and forest.

For travellers who prefer landscapes over attractions, Tha Ta Fang is exactly the kind of place that gives Salawin its identity. It feels less like a sightseeing stop and more like a remote corner of a living river.

The DNP reservation system currently lists Tha Ta Fang as a separate accommodation zone, including park houses, tents and a camping area.

Bu De Cha Viewpoint

จุดชมวิวบูเดชะ · close to the stars

One of Salawin’s newer attractions is Bu De Cha Viewpoint. The name comes from Karen language and is commonly explained as meaning “close to the stars.”

At approximately 895 metres above sea level, Bu De Cha offers elevated views across the surrounding mountain ranges. At dawn, mist can gather between the ridges, creating layers of mountains beneath the rising sun. The viewpoint is also particularly attractive after dark because of the relatively low level of artificial light.

DNP highlighted Bu De Cha in January 2026 as a scenic destination for sunrise, mountain mist, camping and night-sky viewing, while the Mae Hong Son provincial government has been assessing the area for further tourism development.

Best atmosphere · December – February: Identified by the provincial government as the particularly favourable period for the viewpoint’s mountain and morning-mist scenery.

This is one of the strongest additions to a modern ThailandLover itinerary, because it gives Salawin a completely different visual identity from the river.

Layers of mountains beneath the rising sun — and a sky full of stars after dark.

Forests of Salawin

Salawin is primarily a forest landscape. DNP records several important forest types:

Mixed deciduous forest: The home of the park’s teak and hardwoods.
Dry evergreen forest: Greener, denser forest in moister valleys and slopes.
Dry dipterocarp forest: Open seasonal forest adapted to the long dry months.

Important tree species include:

Teak (Tectona grandis)
Siamese rosewood / redwood species
Pterocarpus species
Afzelia
Hopea and Shorea
Dipterocarpus

The park is particularly notable for its teak and hardwood forests. Historical descriptions also identify a very large teak tree within the park as one of Thailand’s largest specimens.

The importance of the forest is ecological as much as visual: these mountains form important watersheds for the wider Salawin river system.

Wildlife

Salawin’s remote forests support a wide range of wildlife. DNP lists species including:

Serow, sambar deer and northern red muntjac
Wild boar and bears
Fishing cat, gaur and tiger
Gibbons and civets
Squirrels and treeshrews
Numerous bird species

The park’s position within western Thailand’s connected forest landscape makes it ecologically significant.

Salawin is a wildlife habitat first, and a wildlife-viewing destination second.

Large mammals such as gaur, tiger and serow are present in the broader ecosystem but are rarely encountered by ordinary visitors. A quiet forest walk, birdwatching and observation of smaller wildlife are much more realistic experiences.

The People of the Border Forest

Salawin cannot be understood only through its natural environment. The protected landscape includes long-established communities, particularly Karen communities living in and around the forest and river valleys.

Villages such as Mae Sam Laep and Tha Ta Fang provide a window into life along a river that functions simultaneously as:

Water: A source of water for the villages and forest.
Road: A transportation route where roads are few.
Market: A trading route with a long history.
Culture: A cultural landscape shaped by the people who live here.
Border: An international boundary between Thailand and Myanmar.

This relationship between people and landscape is one of the defining characteristics of Salawin. Visitors should approach communities respectfully.

This is not a staged cultural attraction. It is a living borderland.

A Landscape of Seasons

Salawin changes dramatically throughout the year.

November – February · Cool season ★★★★★: Generally the most comfortable period for exploring the park. Morning mist can develop above the Salawin River and mountain valleys, and higher viewpoints such as Bu De Cha can be particularly atmospheric. This is the season for mist, cool air, sunrise and clear night skies.
March – May · Hot & dry season: Temperatures rise and the landscape becomes noticeably drier. River levels can fall, exposing more sandy banks and rocks. This period can also overlap with northern Thailand’s smoke and wildfire season — check local air quality and park conditions before travelling.
June – October · Rainy season: The forest becomes greener and streams carry more water, but rainfall can make remote roads and trails more difficult. More importantly, Salawin traditionally has a seasonal tourism and overnight closure, so never assume rainy-season access is available simply because the weather is suitable.

Seasonal Closure

Check before you go

Salawin National Park has a significant seasonal closure policy. The national-park closure schedule published for Thailand identifies 1 June – 30 September as the regular closure period for Salawin’s designated tourism and overnight areas.

There can also be additional temporary restrictions. In 2026, Salawin imposed a forest-access and wildfire-control closure from 1 February to 31 May during the high-risk fire season, and DNP specifically instructed the public not to enter forest areas during this period.

What to Do

01 · Cruise the Salawin: The signature experience. See the forest, cliffs, sandbanks and border landscape from the river.
02 · Visit Mae Sam Laep: Experience one of Mae Hong Son’s most remote riverside communities and the gateway to the Salawin.
03 · Travel toward Tha Ta Fang: Follow the river into a quieter section of the park and experience the landscape away from the main road.
04 · Watch sunrise at Bu De Cha: Come before sunrise for mountain silhouettes, mist and changing light.
05 · Camp under the stars: Bu De Cha and the park’s designated camping areas offer a much quieter night sky than Thailand’s urban destinations.
06 · Explore the forest: Walk or travel along designated routes and observe the vegetation, birds and smaller wildlife.

Accommodation & Camping

Salawin National Park operates several accommodation zones. The current DNP reservation information identifies:

Zone 1 · National Park Headquarters: Accommodation, meeting facilities, tents and camping area.
Zone 2 · Tha Ta Fang Ranger Station: Approximately 70 km from the park headquarters. Accommodation, tents and camping area.
Zone 3 · Mae Sam Laep Ranger Station: Approximately 50 km from the park headquarters. Accommodation is available in this zone.

Because facilities and access can change seasonally, confirm availability through the DNP reservation system before departure.

Getting There

Mae Sariang is the practical base for exploring Salawin National Park. The main park headquarters can be reached from Mae Sariang via Highway 1194 and a turn toward the park office. DNP describes the headquarters as being within the Mae Sariang area, while Mae Sam Laep is farther west in Sop Moei District.

To Bu De Cha: Much closer to the headquarters than Mae Sam Laep. The provincial government reported approximately 8 km from the park headquarters, with a journey of around 30 minutes from Mae Sariang under current road conditions.
To Mae Sam Laep: The journey from Mae Sariang follows a remote mountain road. Allow considerably more time than the distance alone might suggest — road conditions, weather and traffic can all affect travel times.

Travel Style

Salawin is best suited to travellers who enjoy:

Slow travel: The journey matters as much as the destination.
Nature & photography: River, forest, mountain mist and dramatic light.
Remote Thailand: A very different experience from Chiang Mai, Pai or Doi Inthanon.
Cultural landscapes: Riverside communities and Karen cultural heritage.
Adventure travel: Boat journeys and remote mountain roads.
Camping: Especially around elevated viewpoints and riverside areas.

Who Should Visit?

Perfect for

Independent travellers and slow travellers
Nature photographers and birdwatchers
Campers and adventure travellers
Travellers interested in border landscapes
Visitors looking for less-developed destinations

Think twice if you prefer

Luxury infrastructure
Easy public transportation
Dense restaurant and café choices
Guaranteed attractions open every day
Highly structured sightseeing tours

Salawin rewards preparation.

A Suggested 2-Day Journey

Mountains first, then the river

Day 1 · Morning: Mae Sariang → Park Headquarters → Bu De Cha Viewpoint. Experience the mountain landscape and, if conditions are favourable, morning mist.
Day 1 · Afternoon: Return toward Mae Sariang or continue toward the river section of the park.
Day 1 · Evening: Stay at designated park accommodation or a camping area.
Day 2 · Morning: Travel to Mae Sam Laep. Explore the riverside community, then board a local long-tail boat and cruise the Salawin River.
Day 2 · Afternoon: Continue along the river toward Tha Ta Fang or the Moei–Salawin area, depending on the route and current local conditions.
Day 2 · Evening: Return to Mae Sariang.

Photography Guide

Salawin is particularly photogenic during the cooler season.

Sunrise · Bu De Cha: Mountain layers and morning mist.
Morning · Salawin River: Soft light and mist over the water.
Midday · Mae Sam Laep: Strong contrast between the river and forested mountains.
Late afternoon · Riverbanks: Warm light across the cliffs and vegetation.
Night · Bu De Cha: Low artificial light makes the mountain sky particularly attractive.

Responsible Travel

Salawin is a protected forest and a sensitive border landscape.

Do

Follow park instructions and stay on designated routes
Take your rubbish with you and keep noise low
Respect local communities
Use registered, local boat services
Check border and safety conditions
Protect wildlife habitat

Do not

Enter closed forest areas
Approach or disturb wildlife
Collect plants, rocks or forest products
Cross the international border without official permission
Enter restricted areas for photography
Light fires outside designated areas

Salawin vs. Thailand’s More Famous Northern Parks

Salawin offers something different. There is no Doi Inthanon-style summit tourism. There is no Pai-style concentration of cafés and resorts. There is no large-scale attraction infrastructure. Instead, Salawin’s strongest assets are:

The River: A powerful international landscape.
The Forest: Large areas of protected western forest.
The Border: A geographical reality that shapes the landscape and communities.
The Silence: One of the park’s most valuable qualities.
The Journey: Roads, boats and remote viewpoints become part of the experience.

Essential Facts

Location: Mae Sariang & Sop Moei, Mae Hong Son
Established: 9 November 1994 · Thailand’s 78th national park
Area: 450,950 rai / 721.52 km²
Main landscape: Mountains, forest and the Salawin River
Border: Thailand–Myanmar
Highest elevation: Approximately 1,027 m, per DNP’s current park description
Signature river destination: Mae Sam Laep
Signature river journey: Salawin River boat trip
Signature viewpoint: Bu De Cha
Best season: Generally November–February
Regular seasonal closure: 1 June–30 September
Additional restrictions: Fire-season closures may occur — check the latest DNP announcement

Frequently Asked Questions

What is Salawin National Park?: A remote park in western Mae Hong Son where the Salawin River forms part of the Thailand–Myanmar border — forested mountains, river journeys, remote viewpoints and riverside communities. Less about ticking off attractions, more about distance, silence and landscape.
Where is it, and how large is it?: Mae Sariang and Sop Moei districts, Mae Hong Son. 450,950 rai, or 721.52 km². Established 9 November 1994 as Thailand’s 78th national park. Mae Sariang is the practical base.
How do I take a boat trip on the Salawin?: Long-tail boats leave from Ban Mae Sam Laep, heading north toward Tha Ta Fang or south toward the Moei–Salawin confluence. Arrange the boat locally and confirm the route, price and safety conditions on the day.
What is Bu De Cha?: A viewpoint at about 895 metres, whose Karen name is commonly explained as “close to the stars” — sunrise, mountain mist, camping and night skies. About 8 km from park headquarters, around 30 minutes from Mae Sariang. December–February is especially favourable.
When is the park closed?: Designated tourism and overnight areas regularly close 1 June–30 September. Extra restrictions can apply — in 2026, forest areas closed 1 February–31 May for wildfire control. Always check the latest DNP announcement.
When is the best time to visit?: November to February: cool air, mist over the river, sunrise at Bu De Cha and clear night skies. March to May can bring heat, smoke and fire-season restrictions. June to October falls in the rainy season and seasonal closure.
Can I stay overnight?: Yes. DNP lists accommodation zones at the Park Headquarters, Tha Ta Fang Ranger Station (about 70 km from headquarters) and Mae Sam Laep Ranger Station (about 50 km). Confirm through the DNP reservation system before you go.

Mae Sariang National Park: The mountain forests around Salawin’s base town, with seas of mist at sunrise.
Mae Ngao National Park: Clear rivers and bamboo rafting in the forests south of Mae Sariang.
Namtok Mae Surin National Park: Mountain forest and waterfalls in the north of Mae Hong Son.
Doi Inthanon National Park: Thailand’s highest summit — the famous northern park that Salawin is the quiet opposite of.