Lam Nam Kok National Park

A Landscape, Not a Single Stop

In northern Thailand, the Kok River — แม่น้ำกก — is more than a waterway. It is a landscape. It moves through mountains and forests, passes villages and agricultural valleys, feeds wetlands and streams, and connects some of the most distinctive natural environments around Chiang Rai.

Along that corridor lies the area being developed as Lam Nam Kok National Park: a large protected-natural landscape centred on the river and the mountains, forests, waterfalls and hot springs around it. This is a different side of Chiang Rai. Beyond temples, tea plantations and famous viewpoints, there is a quieter country of deep forest, waterfalls, mountain streams and warm mineral water.

River

The Kok organises the landscape. From a kayak, it becomes the route.

Forest

Holds the watershed that feeds every stream and fall.

Waterfall

Khun Korn is the icon. Huai Kaew, Huai Kang Pla and Pong Phrabat complete the network.

Hot spring

Huai Mak Liam rises beside the river — warm water next to a cool northern current.

The most interesting thing about Lam Nam Kok is not any single attraction. It is the relationship between them: river, forest, mountain, waterfall, hot spring, village and wildlife. Together they form one of Chiang Rai’s most promising emerging nature destinations.

A northern Thai landscape of forests, waterfalls, hot springs and the Kok River flowing through the mountains of Chiang Rai.

At a Glance

English Name

Lam Nam Kok National Park

Thai Name

อุทยานแห่งชาติลำน้ำกก

Current Official Status

National park preparation area — อุทยานแห่งชาติลำน้ำกก (เตรียมการ)

Province

Chiang Rai

Main Districts

Mueang Chiang Rai · Mae Chan · Mae Suai · Mae Lao

Also Proposed

A section in Mae Ai District, Chiang Mai, around Tha Ton — proposed, not confirmed as a final boundary

River

Kok River — แม่น้ำกก

Landscape

Mountain forest, river valleys, waterfalls, streams and hot springs

Signature Attraction

Khun Korn Waterfall

Other Key Waterfalls

Huai Kaew · Huai Kang Pla · Pong Phrabat

Hot Spring

Huai Mak Liam — about 56°C, beside the Kok River

Main Activities

Nature walks, waterfalls, camping, rafting, kayaking, photography and nature study

Proposed Area, 2022 Process

367,168.53 rai / 587.47 km² — a proposal, not a final legal area

As of March 2026

Still under preparation for declaration, and already open for public nature recreation and study

First, Understand the Status

It is not yet a fully declared national park

The name Lam Nam Kok National Park is already widely used in tourism information. The Department of National Parks continues to identify the area officially as อุทยานแห่งชาติลำน้ำกก (เตรียมการ).

In March 2026, the Director-General of the Department of National Parks visited the area and stated that it was still in the process of being prepared for national-park declaration. At the same time, DNP confirmed that visitors can already enter and enjoy the natural attractions. As of 16 March 2026, the area remained in preparation — and was already open for nature-based recreation and study.

ThailandLover’s wording: Lam Nam Kok National Park — currently a national-park preparation area in Chiang Rai. We do not treat the final legal boundary and status as completed.

The Proposed Landscape

In 2022, the Department of National Parks opened a public participation process on the proposed designation of the Lam Nam Kok area. The proposed area covered approximately:

367,168.53 rai
≈ 587.47 km²

The proposal covered parts of Mueang Chiang Rai, Mae Chan, Mae Suai and Mae Lao, and also proposed an area in Mae Ai District, Chiang Mai, in the Tha Ton area.

This figure should be read as a proposed designation area, not as the final legally established park. Older secondary sources publish different area numbers. Until the boundary is officially confirmed, ThailandLover will not publish a definitive current park-area figure.

The Kok River

The landscape’s main character

Everything begins with the river. It is one of northern Thailand’s important waterways, and it gives the proposed park its identity. Within the wider Lam Nam Kok landscape, the Kok meets mountain forests, agricultural valleys, small tributaries, waterfalls, villages, wetlands and places made for being on the water.

That makes this destination different from a conventional mountain national park. The river is not simply something to photograph. It is the organising element of the landscape.

A river through the mountains

The Kok passes through northern Thai mountains before it reaches the broader Chiang Rai valley. The terrain changes continuously. Some stretches feel distinctly mountainous. Others open into farmland. Some sections are heavily forested. Others sit close to communities.

You can experience several different landscapes without travelling very far. That variation is one of Lam Nam Kok’s strongest characteristics.

The Forest Landscape

Around Lam Nam Kok, forested hills and mountain terrain protect the headwaters and smaller streams that feed the Kok. Forest and water are inseparable here.

• Holds soil and reduces erosion
• Regulates runoff and protects streams
• Provides wildlife habitat
• Keeps stream environments cooler

When you stand at a waterfall, you are seeing only the final expression of a much larger forest-water system. The mountains collect rainfall. Vegetation slows the water. Roots stabilise the slope. Streams carry it downhill. Waterfalls appear where the terrain changes. Eventually the water reaches the Kok.

This is not “waterfalls near Chiang Rai.” It is a mountain watershed connected to a major river.

Khun Korn Waterfall

Chiang Rai’s great forest waterfall

If Lam Nam Kok has one natural icon, it is Khun Korn Waterfall. It lies in Mae Korn Subdistrict, Mueang Chiang Rai District, and is widely recognised as one of Chiang Rai’s most important natural attractions. Mountain forest surrounds it. The atmosphere is a long way from the city’s centre.

The journey moves gradually from cultivated land into greener, more mountainous terrain. Then the sound of water begins to dominate. Khun Korn is not a roadside viewpoint. A walking route leads deeper into the forest toward the fall, which is why it suits travellers who want a genuine forest experience rather than a photo stop from the car.

Older tourism information describes the waterfall as approximately 70 metres high. Secondary sources do not always agree on the measurement. Unless a current official source is being cited for a specific figure, ThailandLover prefers a simpler description: one of Chiang Rai’s tallest and most impressive waterfalls.

Why it feels different

Dense vegetation. Shade. The sound of water growing louder as you approach. No elaborate interpretation is required. The landscape explains itself. That is one of the strongest reasons Khun Korn works as a signature ThailandLover destination.

The Other Waterfalls

The falls should not be treated as isolated attractions. They are different expressions of the same hydrological landscape. Rain falls on the mountains. Forest captures and slows the water. Streams form. Water descends through valleys. Eventually the system feeds the Kok.

The forest creates the water. The water creates the waterfalls. The waterfalls feed the river.

Huai Kaew Waterfall

Huai Kaew belongs to the Huai Kaew–Huai Mak Liam nature area that was folded into the broader preparation project. DNP identifies it among the principal attractions visitors can already enjoy. Compared with Khun Korn, it is a more intimate forest-water experience. The attraction is not only the vertical drop. It is stream, rocks, forest, shade and mountain atmosphere.

Huai Kang Pla Waterfall

Huai Kang Pla is another fall specifically identified by DNP, managed as part of the preparation-area network. ThailandLover presents it as part of the waterfall landscape — not as the “largest” or “highest,” and not with measurements that lack an authoritative source.

Pong Phrabat Waterfall

A shorter escape close to Chiang Rai

Pong Phrabat is a more accessible nature stop on the Chiang Rai side of the landscape. The official tourism directory places it in Ban Du Subdistrict, Mueang Chiang Rai, under the management of the Lam Nam Kok forest-park area.

• Small cascades and rocky stream sections
• Shaded forest
• Short recreational areas

It suits travellers who want a nature pause without committing to a full-day mountain walk. A half day here, plus one other stop, is a reasonable first taste. It is not the whole story.

Huai Mak Liam Hot Spring

Warm water beside the Kok River

Unlike a hot spring buried deep in a mountain forest, Huai Mak Liam sits beside the Kok River. DNP currently identifies the water temperature at approximately 56°C. The area has become an increasingly important place to relax: beside the river, in the steam, at a campsite, or in mineral bathing where facilities and conditions permit.

In March 2026, DNP stated that the hot spring had been opened for visitor use since late 2025.

The most distinctive pairing

On one side

A cool-flowing northern river.

On the other

Naturally heated groundwater.

That contrast is why Huai Mak Liam deserves more than a line on a list of “another hot spring.” Hot springs occur when groundwater travels deep enough to be heated, then returns toward the surface. The exact geology varies by place. Here, the result is a warm-water system close to the Kok — a reminder that the same mountain landscape that produces streams and waterfalls can also produce naturally heated water.

Do not assume every visible pool is safe to enter. At about 56°C, the water can burn. Use only designated bathing facilities or areas that have been assessed and approved.

On the River

The Kok also creates a second way of seeing the landscape. In March 2026, DNP reported that rafting and kayaking operated by private-sector providers were popular in the area. From the forest, the river is something you look at. From a kayak or raft, the river becomes your route through it.

Kayaking

Kayaking is the more intimate relationship. You move through the water rather than beside it: riverbanks, forest, farmland, villages, changing conditions, mountain horizons. Confirm the exact route, season and safety conditions with the current operator and local authorities.

Rafting

Rafting is the more social version — better for visitors who want recreation rather than pure observation. River activities depend on water level, weather, rainfall, current and local operating rules. A route that runs in one season will not necessarily run the same way in another. Follow the operator’s instructions. Wear the required flotation equipment. Do not underestimate a river because it looks calm.

Wildlife and Birds

The ecological value of Lam Nam Kok comes from the connection between forest and river. The wider landscape can hold forest birds and water-associated birds, small mammals, reptiles, amphibians, insects and aquatic life. The variety matters more than the promise of a particular large animal.

ThailandLover describes this as a biodiversity landscape, not a guaranteed wildlife-viewing destination. Do not feed animals. Feeding changes behaviour.

Birdwatching

Birds are one of the easiest ways into the landscape. Forest, river, wetland and agricultural edge create several habitats in a relatively compact region. Look along river margins, stream edges, forest clearings, wetlands, trees near waterfalls, and the hot-spring surroundings. Early morning is generally the best time for serious watching.

A Living River Corridor

Lam Nam Kok is unusual because the natural landscape does not exist apart from people. The Kok has long been part of life in northern Thailand. Along the wider corridor are villages, farmland, river transport, livelihoods and cultural landscapes. Visitors can see the relationship between protected nature and everyday life.

This is not a wilderness sealed off from society. It is a living northern Thai river corridor. The proposed landscape also explains the scale: DNP’s 2022 designation covered areas in Mae Chan, Mueang Chiang Rai, Mae Suai and Mae Lao, and included a proposed section in Mae Ai, Chiang Mai. That is why Lam Nam Kok should be treated as a landscape, not a single tourist site.

Why Chiang Rai Needs This

Chiang Rai is already known for temples, art, tea, mountains, ethnic-cultural life and Mekong-region landscapes. Lam Nam Kok adds another dimension: accessible wilderness close to the city. Travellers do not necessarily need several days in remote mountain country to meet nature. Waterfalls, forest and a hot spring can be combined into a nature-focused itinerary from Chiang Rai.

Central Chiang Rai

Art, architecture and culture.

Lam Nam Kok

Water, forest, mountains and outdoor life.

The two experiences complement each other. During the March 2026 inspection, DNP’s Director-General described the area as having the potential to become a new tourism landmark for Chiang Rai, and ordered work on multilingual interpretation, visitor information, warning signs, landscape management, hot-spring safety and visitor facilities. That is a useful sign of where the destination is heading. The more interesting editorial opportunity is to know the landscape before it becomes overly commercialised.

The Seasonal Character

Northern Thailand has a strong seasonal rhythm, and Lam Nam Kok changes with it. There is no single best month for every experience.

Cool season · November – February

Generally the most comfortable window for waterfall walks, forest time, camping, river activities and photography. Cooler temperatures make longer outdoor days easier.

Hot season · March – May

Temperatures rise. Individual waterfalls can drop. Some areas feel drier. Prefer early mornings. This period can also coincide with seasonal haze and wildfire smoke — a real issue for photographers, and for anyone with sensitive breathing.

Rainy season · May – October

The forest turns intensely green. Waterfalls can become much more powerful. Streams fill. The landscape can be spectacular — and the risks rise with it.

What you came for

• Comfortable walking — November to February
• Lush forest — the rainy season
• Powerful waterfalls — after rainfall, only if conditions are safe
• River activities — depends on the operator and the current water
• Mountain photography — cool-season mornings
• Hot-spring time — the cooler months

The burning season

This deserves special attention for international travellers. Northern Thailand can fill with haze and smoke in the dry season, particularly around the turn from winter to summer. Air quality can change from day to day. Check it before travelling if your lungs are sensitive. For landscape photography, the same ridge can look crystal clear one morning and completely muted the next.

Photography

Lam Nam Kok works for photographers because it offers several visual scales in one landscape.

Wide landscape

Mountain ridges and the Kok River.

Waterfall

Long-exposure water at Khun Korn and the other falls.

Forest

Moss, ferns, leaves and stream beds.

Hot spring

Steam, mineral water and the river nearby.

Human landscape

Villages, farmland and river life.

The signature photograph

If one image were to represent Lam Nam Kok, it should not necessarily be a waterfall. A stronger frame shows the Kok River flowing through a green northern mountain landscape, with mist or atmospheric haze rising from the forest. That picture communicates the destination’s identity at once.

Responsible Travel

Lam Nam Kok is an emerging nature destination. That makes care more important, not less.

• Stay on designated trails. Shortcuts create erosion and damage plants.
• Do not enter closed waterfall areas. Closures usually follow safety or conservation conditions.
• Do not swim where it is prohibited. Falls and streams can turn dangerous quickly after rain.
• Do not collect plants, rocks or wildlife.
• Do not feed wildlife.
• Carry out your rubbish, especially around waterfalls and riverbanks.
• Respect local communities. The Kok is a living landscape, not only a tourist attraction.

Safety and How Demanding It Is

Waterfalls

Never underestimate the current. Rainfall upstream can change conditions even when the visitor area first looks normal.

The river

For kayaking and rafting, follow the operator. Wear the flotation gear required. Calm-looking water is not a safety assessment.

The hot spring

Natural hot water can cause burns. At approximately 56°C, Huai Mak Liam is not a place to improvise. Enter only designated bathing areas.

What a visit asks of you

Easier

Huai Mak Liam Hot Spring, Pong Phrabat, and selected river areas.

Moderate

Khun Korn Waterfall, Huai Kaew, and selected forest trails.

More demanding

Longer mountain trails and river-based adventure. Actual access changes with trail condition and current management.

How Long to Stay

Half a day

A Pong Phrabat-style waterfall stop, plus one other nature pause. A sample, not the landscape.

One day

A better introduction: waterfall, forest, Huai Mak Liam and the Kok River.

Two days

Waterfalls, hot spring, camping, a river activity and slower exploration. This is the itinerary that matches the ThailandLover pace. Do not rush. Let the landscape unfold.

A suggested day

• Morning — leave Chiang Rai early and begin at Khun Korn while the air is still comfortable.
• Late morning — stay in the surrounding forest. Do not leave the moment the waterfall is photographed.
• Afternoon — move toward Huai Mak Liam and spend time beside the Kok.
• Late afternoon — the river landscape in softer light.
• Evening — if facilities and regulations allow, camp beside the landscape rather than rushing back to the city.

A suggested two days

Day 1: Chiang Rai → Khun Korn Waterfall → Huai Kaew → Huai Mak Liam.

Day 2: a Kok River activity → Pong Phrabat → the local landscape → Chiang Rai.

Adjust the routing to current access and operating conditions. Do not treat this as a fixed loop.

What Makes Lam Nam Kok Different

It is not the tallest mountain. It is not the largest waterfall. It is not the most remote wilderness. Its strength is connection.

• The Kok River connects landscapes.
• The forest feeds the river.
• The waterfalls reveal the terrain.
• The hot spring reveals the geology.
• Communities live alongside the water.
• Chiang Rai sits close enough to make the whole landscape unusually accessible.

The ThailandLover Perspective

• Don’t visit only for the waterfall. Understand the forest that creates it.
• Don’t visit only for the hot spring. Look at the river beside it.
• Don’t simply photograph the Kok. Follow its landscape.
• Don’t treat Lam Nam Kok as another checklist attraction. Experience it as a northern Thai ecosystem.

ThailandLover Destination Verdict

Nature ★★★★★

A connected landscape, not a single viewpoint.

Forest ★★★★★

The watershed behind every fall.

Waterfalls ★★★★★

Khun Korn leads a real network.

River landscape ★★★★★

The Kok is the organising fact.

Hot spring ★★★★☆

Distinctive because it sits beside the river. Respect the heat.

Photography ★★★★★

Several scales, and a river portrait stronger than a checklist shot.

Wildlife / birdwatching ★★★★☆

A biodiversity landscape. Sightings are never guaranteed.

Adventure ★★★★☆

Walks, camping, kayaking and rafting — on the river’s terms.

Accessibility ★★★★☆

Easy stops and more demanding forest in the same landscape.

Families ★★★★☆

Yes, if the day stays with the easier places.

Slow travel ★★★★★

Two unhurried days beat a rushed circuit.

Off the beaten path ★★★★☆

Emerging, and better known before it is overbuilt.

Connection to Chiang Rai ★★★★★

Accessible wilderness close to the city.

Best For — and Not Ideal For

Lam Nam Kok is a strong match for nature lovers, waterfall chasers, landscape photographers, birdwatchers, outdoor travellers, river adventurers, families, campers, slow travellers, independent travellers, and anyone looking past Chiang Rai’s famous cultural attractions.

It is less ideal for travellers seeking luxury resorts, large-scale entertainment, nightlife, highly commercial attractions, guaranteed wildlife encounters, or a completely controlled tourist environment. Lam Nam Kok is strongest when it is experienced as nature.

Essential Information

Destination

Lam Nam Kok National Park · อุทยานแห่งชาติลำน้ำกก

Current Status

National park preparation area · อุทยานแห่งชาติลำน้ำกก (เตรียมการ)

Province

Chiang Rai

Main Districts

Mueang Chiang Rai · Mae Chan · Mae Suai · Mae Lao

River

Kok River / Mae Kok River · แม่น้ำกก

Key Attractions

Khun Korn Waterfall · Huai Kaew Waterfall · Huai Kang Pla Waterfall · Pong Phrabat Waterfall · Huai Mak Liam Hot Spring

Main Experiences

Waterfalls · forest walking · hot springs · camping · kayaking · rafting · photography · birdwatching

Proposed Area

367,168.53 rai / 587.47 km² in the 2022 public-participation process — not a statement of a final legally declared park area

Headquarters Vicinity

Doi Hang, Mueang Chiang Rai · north of the city toward the Kok

Current Development

As of March 2026, DNP confirms the area remains under preparation for declaration and is already open for nature recreation and study

Before You Go

Because this is still a developing protected-area landscape, conditions can change. Check current opening status, waterfall conditions, weather, river conditions, hot-spring facility status, camping availability, trail access, safety announcements, and local air quality in the dry season.

The Department of National Parks provides national-park accommodation and reservation services through its official system. Confirm what is actually bookable here before you plan a night in the forest.

Frequently Asked Questions

Is Lam Nam Kok already a fully declared national park?

Not as of 16 March 2026. DNP still describes it as อุทยานแห่งชาติลำน้ำกก (เตรียมการ) — in preparation for declaration — while confirming that visitors can already come for nature recreation and study.

How large is the park?

The 2022 public-participation proposal covered about 367,168.53 rai, or 587.47 km², including parts of four Chiang Rai districts and a proposed section in Mae Ai, Chiang Mai. That is a proposed area, not a confirmed final boundary. Older sources disagree. We do not publish a definitive current figure until the boundary is official.

What should I actually visit?

Khun Korn if you want the forest waterfall. Huai Kaew for a more intimate stream. Pong Phrabat for a shorter stop near Chiang Rai. Huai Mak Liam if you want the hot spring beside the river. Huai Kang Pla belongs in the same waterfall network — without unsupported superlatives.

When should I go?

November to February is the most comfortable all-round window. Rainy months are greener and more powerful, and more hazardous. March to May can be hot and hazy. Match the month to the experience, then check conditions.

Can I kayak or raft?

Private operators were running both, according to DNP in March 2026. Confirm the route, the season and the safety briefing. Wear the required flotation gear. Water level decides the day.

Is the hot spring safe to enter?

Only in designated bathing areas. DNP puts the temperature at about 56°C. Visible steam is not an invitation to step in.

More of Chiang Rai’s Mountains

Khun Chae National Park

A forested mountain ridge in Chiang Rai — a different northern atmosphere from this river corridor.

Doi Luang National Park

A larger mountain park reaching into Chiang Rai, Phayao and Lampang.

Doi Wiang Pha National Park

Pine forest and mist on the Chiang Mai–Chiang Rai highland edge.

Phu Chi Fa National Park

Chiang Rai’s famous sea-of-mist ridge — the postcard counterpart to Lam Nam Kok’s quieter river country.

Nature & Parks

More protected landscapes across ThailandLover’s collection.