🔄 Updated 21 Jun 2026
Phu Phan National Park covers the forest along the Phu Phan range, spreading across several districts of Sakon Nakhon and reaching into Kalasin. It's a shady headwater forest, several degrees cooler than the town. The best part is how easy it is to get around: many of the sights sit right along Route 213 (Sakon Nakhon–Kalasin), so you can park and walk straight in without any hard trekking. It works both for people passing through on a half-day drive and for those who want to camp overnight in the cool air.
Main sights in the park
Phu Phan isn't a single spot — the sights are spread out along the ridge. Some are waterfalls, some are caves or rock plateaus, and some are roadside viewpoints. If you only have half a day, start with Kham Hom Waterfall and the snake-curve viewpoint, since they're close together and the easiest to reach.
Kham Hom Waterfall
The park's headline waterfall, fed from Khao Tham Dong Ling. It tumbles down pretty rock tiers in shady forest, the water is cool enough to play in, and there's a picnic area. About 18 km from town.
Snake-Curve Viewpoint
A hairpin bend on the mountain road near the Kham Hom Waterfall turnoff, looking down over Sakon Nakhon city and Nong Han Lake stretching to the horizon. It's the most popular photo stop on the drive.
Seri Thai Cave
A cave that served as a hideout and weapons store for the Free Thai (Seri Thai) movement during World War II. There are signboards telling the history, you can walk through, and the air inside is cool and quiet.
Lan Sao Eh
A broad rock plateau in the forest with oddly shaped boulders and a natural stone bridge nearby. It's good for a stroll and photos, and wildflowers come up across the plateau from late rainy season into early cool season.
Pha Sawoei
A roadside viewpoint on Route 213 on the Kalasin side, facing west. It's a popular rest stop for drivers crossing the Phu Phan hills, with food stalls and souvenir shops right there.
Preecha Suksan Waterfall
Another waterfall inside the park, smaller than Kham Hom and quieter. It suits anyone after a calmer corner, and the water is at its prettiest late in the rainy season.
Pick spots based on your time
Half a day → Kham Hom Waterfall + the snake curve is plenty · A full day → add Seri Thai Cave and Lan Sao Eh · Driving on to Kalasin → stop at Pha Sawoei as a rest break.
Want more out of Sakon Nakhon? Book tours & activities
Booking online ahead on Klook or GetYourGuide is usually cheaper than the gate and skips the queue. Pick only the experiences you actually want — prices and availability are shown live on each site.
When the waterfalls look best
We'll be honest about the waterfalls: it all comes down to the season. They're fullest and most beautiful from late rainy season into early cool season, roughly October to early December, when the water is still strong, the forest is lush and green, and the air is starting to cool. If you come in the dry season (March–May) the waterfalls drop to a trickle or some run dry, and the appeal shifts to the viewpoints and caves instead.
If you're coming mainly for the cool weather, the best window is December to January. Mornings up on the mountain are properly cold, and on some days mist drifts along the forest. Drive up to a viewpoint early and you may catch a thin sea of mist over the city and Nong Han Lake. We'd suggest leaving town at first light if you want that shot.
Entry fees and opening hours
- Opening hours — the park is open roughly 08:00–18:00. Kham Hom Waterfall opens a little earlier, around 06:00–18:00. Aim to arrive before late afternoon so you have time to walk around at an easy pace.
- Entry (Thai) — 20 THB adults, 10 THB children · 10 THB for pupils and students.
- Entry (foreign) — 100 THB adults, 50 THB children.
- Vehicle fee — 30 THB for a four-wheel car · 20 THB for a motorbike · bicycles free.
- Fee waived — children under 3, monks and clergy, seniors aged 60 and over, and people with disabilities.
Straight talk
These rates took effect around 2024 and may change under National Parks Department announcements. Some spots, such as Kham Hom Waterfall, may charge a fee separate from the park headquarters. If you're planning firm dates, call the park ahead on 086 459 5600 or 081 263 5029 to check.
Driving up the mountain
The easiest way to see Phu Phan is to drive yourself, since the sights are spread along Route 213 (Sakon Nakhon–Kalasin). From Sakon Nakhon town, head out on Route 213 toward Kalasin. You'll pass Phu Phan Rajanivet Palace first, then the road starts climbing, and after about 25 km you reach the park headquarters. Along the way you'll come to turnoffs for Kham Hom Waterfall and the various viewpoints.
The climb is winding and steep in places. A sedan handles it fine at a sensible speed, but watch the hairpins like the snake curve. On cool-season mornings there can be mist that cuts visibility, so put your headlights on and drive a bit slower to be safe. If you don't have your own car, renting one or chartering a songthaew or motorbike taxi from town is the practical option, since there are few public buses that run directly to the sights.
Fuel up + stock up before you climb
There are few shops and petrol stations up on the mountain. Fill the tank and buy water and snacks for the car back in town, so you don't have to run back down to refuel partway.
Want to stay overnight up here?
If you really want to sleep in the cool Phu Phan air, the park has bungalows and a campground. Book ahead through the National Parks Department's online system (nps.dnp.go.th). The cool season gets busy, so reserve several weeks out. If you have your own tent you can pitch it for a per-person rate, or rent one from the park. Waking up on the mountain means cool air and thin mist you just won't get staying in town.
If you'd rather not camp, the other option is to stay in Sakon Nakhon town — which has hotels across a range of budgets — and drive up early in the morning. It's only about 25 km and takes under half an hour, which is handy if you want both a comfortable night and the morning views up on the mountain.
Phu Phan: half day to full day
Hit the highlights fast
Cover the waterfalls, caves and viewpoints
Good to know before you go
- Wear hiking shoes — the paths to the waterfalls and rock plateaus get slippery when wet, so a grippy sole helps a lot.
- Pack out your trash — this is a national park, so don't leave litter at the waterfalls or viewpoints.
- Check the season first — come late rainy to early cool season for full waterfalls, December–January for the coldest air.
- Patchy phone signal — coverage is weak in spots up on the mountain, so download offline maps beforehand for peace of mind.
- Watch for wildlife and leeches in the rain — stick to the park's marked trails and don't wander off them.
Plan a full Sakon Nakhon trip — the town, temples, lake and local eats
See the Sakon Nakhon guide →