🔄 Updated 21 Jun 2026
If your mental image of Bueng Kan is the Three Whale Rock or Phu Thok perched on a high cliff, Tham Phra is the other side of the province — pure flowing water deep in the forest. The waterfall sits at Ban Tham Phra in Sok Kam subdistrict, Seka district, set well inside the Phu Wua Wildlife Sanctuary about 60 km from Bueng Kan town. It's a large 3-tier waterfall running over a sandstone cliff, with wide pools and rock grooves that visitors use as natural slides.
What sets it apart from most waterfalls is how you get to it, because cars can't reach the falls directly. You park at the boat landing, take a boat up a forest stream for about 10 minutes, then walk a little further along a forest trail before you reach the water. That bit of effort to get in is exactly what makes the atmosphere quieter and wilder than a waterfall you can drive straight up to.
What is Tham Phra Waterfall, and why go
Tham Phra is a waterfall within the Phu Wua forest, a wildlife sanctuary covering evergreen forest and broad sandstone terraces across the Seka and Bung Khla areas. The falls drop in tiers over a large sandstone plateau, and when the water is high the curtain runs wide and strong, the sound of it hitting the rock echoing through the whole basin. Green, shady forest surrounds it on all sides.
The feature people talk about most is the natural rock slide — a groove worn smooth by the water into a long chute. When the water is running, people sit and slide down it into the pool below. It's a fun, lightly adventurous way to play in the water, but you have to pick your spot and stay careful, because the rock is slippery and the current is strong in places.
Straight talk before you plan
Tham Phra Waterfall is open in the rainy season only, not all year, because in the dry season there's barely any water left, and the area is a wildlife sanctuary that opens in set windows according to the sanctuary's announcements. If you're coming to see the falls at full flow, check which dates it opens that year before you set off — don't assume you can just turn up whenever.
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Why you take a boat then hike in
This is the part that makes Tham Phra fun and different. Your car only gets you as far as the Tham Phra Waterfall boat landing. From there you board one of the boats the sanctuary runs and ride up a forest stream for about 10 minutes, with forest and streamside plants on both sides — it's cool and shady, like genuinely cruising into the forest before you reach the falls.
When the boat drops you at the far end, you walk about another 500 meters along a forest trail to reach the waterfall. It's not far and most people manage it easily, but it's a dirt-and-rock forest path that can get slippery in the rainy season — shoes with good grip make it more comfortable. All in, the boat ride and walk don't take long, but you get that feel of going to find a waterfall that you just can't get when you drive straight up to one.
- The boat leg — about 10 minutes up a forest stream, roughly 1 km. The boats are run by the sanctuary, so you don't have to arrange one yourself.
- The hiking leg — about 500 meters from where the boat drops you to the falls, on a dirt-and-rock forest path. Short, but it can be slippery.
- Total visit time — wandering, taking photos, and soaking takes a relaxed 1–2 hours per visit.
- Leave time to get back — you take the boat back out the way you came in, so don't lose track of time and stay past closing.
When it's open, and what the boat and entry fees are
Tham Phra opens for the rainy-season tourist window, with the Phu Wua Wildlife Sanctuary announcing the opening date each year. In 2025, for example, it opened from June 14 onward. The water is usually at its best and fullest from around June to September, with hours of roughly 08:30–16:30. Opening and closing dates and times can shift from year to year, so it's worth checking with the Phu Wua Wildlife Sanctuary before you go.
- Boat fee — around 50 THB for adults, 30 THB for children (approximate; may change by year).
- Waterfall entry (Thai nationals) — around 30 THB for adults, 20 THB for children.
- Entry (foreigners) — around 200 THB for adults, 100 THB for children.
- Opening hours — roughly 08:30–16:30, only during the season the sanctuary announces as open.
Check before you set off
Because this is a waterfall in a wildlife sanctuary that opens seasonally, the exact opening dates and fees can change from year to year. Before you go, it's best to call or check the Phu Wua Wildlife Sanctuary's announcements. And if it's rained hard for several days, the water can run strong enough that they temporarily suspend swimming — keep that possibility in mind.
How to get to Tham Phra Waterfall from Bueng Kan town
Tham Phra Waterfall is in Seka district, about 60 km from Bueng Kan town — roughly a 1 to 1.5 hour drive. The main route is Highway 212 through So Phisai district, heading toward Seka, then turning onto Highway 2019 and following it to the Tham Phra Waterfall boat landing, where you park and board the boat in.
- Private car / rental — the most convenient option, since it's outside town and there's no public transport straight to the boat landing. You can drive from Bueng Kan town or continue on from Udon Thani.
- Hire a local car — if you're not driving yourself, you can hire a car from Bueng Kan town for a round trip, combining it with other spots around Seka and Bung Khla in a single day.
- Go with a nature tour — some operators run trips to the Phu Wua waterfalls in the rainy season, good for anyone who doesn't want to plan the route and book a boat themselves.
- Allow for the final stretch — the road into the boat landing is partly rural in places, so drive slowly, and going during the day is safer.
How to prepare, and who it suits or doesn't
Tham Phra suits people who like nature with a little light adventure — who don't mind a short forest hike and a boat ride. If you love soaking in the water and riding the rock slide and aren't fussed about resort-level comfort, you'll enjoy it here. But if you find travel difficult, you're afraid of the water, or you're coming with very young children, weigh it up carefully, because there's both a boat leg and a walking leg that can be slippery.
- Shoes with good grip — sneakers or non-slip water shoes, since there's both a forest trail and wet rock. Don't wear flip-flops.
- Clothes you don't mind getting wet — if you plan to swim, bring a spare set and a waterproof bag for your things, because there are no big shops near the falls.
- Drinking water and a few snacks — carry your own, because it's forest inside and what's for sale is limited.
- Pack out every bit of trash — this is a wildlife sanctuary, so leave no litter, don't make noise, and don't take anything out of the forest.
Safety while you're in the water
The rock slide is fun, but the rock is slippery and some spots are deep or fast-flowing, especially after heavy rain. Watch the water before you get in, stick to spots the staff or locals recommend, don't go in alone in isolated spots, and if they announce swimming is suspended because the current is strong, follow it strictly.
Where else to go in the Phu Wua forest
The Phu Wua forest isn't just Tham Phra. Within the same sanctuary there are several more waterfalls and natural spots that open in the rainy season at the same time, so if you've made it out here and have time, you can roll them into one trip.
- Chet Si Waterfall — another Phu Wua waterfall, one of the most popular spots for swimming, with clear water running over a wide rock plateau. It opens in the rainy season too.
- Tat Nok Khian and Tham Fun waterfalls — smaller falls within the same forest, for anyone who wants to tick off the full set.
- The nature trail to Lan America — a hiking route from the sanctuary headquarters out to a wide sandstone plateau called Lan America, passing the Pha Nang Khoi viewpoint. It's a serious multi-hour hike, best for people who've come specifically prepared to walk.
Phu Thok
Wooden stairs and walkways spiraling around a 7-tier cliff to a 360-degree viewpoint — another Bueng Kan landmark you can pair into the same trip.
ViewpointThree Whale Rock
Three whale-shaped rocks on the Phu Sing cliff, the sunrise and sea-of-fog spot people talk about most in Bueng Kan.
City guideThe full Bueng Kan trip
See the sights, the food, the places to stay, and the routes across all of Bueng Kan in one place, and plan from the start.
Plan a full Bueng Kan trip — the Phu Wua waterfalls, Phu Thok, Three Whale Rock, and food along the Mekong
See the Bueng Kan travel guide →