Nong Bua Lamphu is the province Thailand forgot to tell anyone about. Most travellers experience it at 90 kilometres an hour on Route 210, somewhere between checking out of Udon Thani and checking into Loei, without noticing they crossed a border at all. Officially it is written Nong Bua Lam Phu, half the road signs disagree, and it has only been a province since 1993.
And yet, about 45 minutes short of the Loei border, a limestone mountain rears out of the rice plain with a staircase crawling up its face, and at the top a huge white Buddha sits in a cave mouth gazing across half of Isaan. That is Tham Erawan. It is one of the great roadside sights in Thailand, it costs nothing but sweat and roughly 600 steps, and almost everybody drives straight past it.
This guide makes the case for the half-day or overnight that turns the flattest stretch of the Udon to Loei run into its best part. For the quick facts, start with our Nong Bua Lamphu province profile.
What Nong Bua Lamphu really is
Sugar cane, rice, rubber, and a small provincial capital wrapped around a lotus pond, the nong bua of the name. Until December 1993 all of this was simply the western end of Udon Thani province. Then Bangkok redrew the map, and Nong Bua Lamphu was reborn as one of Thailand’s newest provinces alongside Amnat Charoen and Sa Kaeo. It inherited no airport, no railway and no tourism plan, and has been quietly farming ever since.
In 1574 the young King Naresuan camped here on a military expedition north and fell gravely ill, an episode the town still honours with a shrine beside the lake. And up on Phu Phra, people were leaving stone tools behind thousands of years before anyone invented provinces. Old country, new name, no queue.
Why go to Nong Bua Lamphu
Three honest reasons. First, Tham Erawan, which alone justifies rearranging a travel day. Second, Phu Kao-Phu Phan Kham National Park, where you can put a tent a few metres from the Ubolratana reservoir and get a sunrise over water that people pay ฿4,000 a night for in Krabi. Third, the complete absence of other foreigners. Nobody is selling you an elephant-pants-and-bucket experience here, because nobody has thought of you as a market.
What you should not expect: nightlife, boutique anything, or English menus. This is deep, functional Isaan. That is the point.
Getting to Nong Bua Lamphu
There is no airport and no railway, so everything runs through the neighbours. The practical gateway is Udon Thani: fly from Bangkok (about an hour, ฿800-1,500 on the budget carriers), then take a bus or minivan from Udon’s Bus Terminal 1 heading toward Loei along Route 210. Nong Bua Lamphu town is about an hour away and the fare is ฿50-80. Any Loei-bound bus will also drop you at the Erawan cave junction in Na Wang district, around 45 minutes further.
Direct from Bangkok, buses leave Mo Chit for Nong Bua Lamphu and Loei; count on eight to nine hours and ฿450-650 depending on class. By train, ride the Bangkok to Udon Thani line (a second-class sleeper berth runs about ฿600-900) and finish by road.
Honestly, though, this is a province built for a hire car: ฿900-1,200 a day from Udon Thani airport, and the cave, the park and the weaving villages all unlock in a way public transport never quite manages.
Where to stay
The provincial capital has the sensible options. Around the lake and the night market you will find clean, unremarkable guesthouses in the ฿400-700 range, plus a handful of those provincial business hotels Thailand does so well, with big rooms, cold aircon and free parking, for ฿800-1,300.
If Tham Erawan is your target, Na Wang district has simple roadside resorts, and simple means simple: a fan or basic aircon bungalow for ฿400-600 and a 7-Eleven within riding distance.
The best bed in the province, though, is canvas. Phu Kao-Phu Phan Kham National Park rents tents and pitches on the reservoir shore for a few hundred baht all-in, and waking to mist on the water beats any hotel buffet in Isaan.
What to eat in Nong Bua Lamphu
This is Isaan at its most undiluted, so the holy trinity rules: som tam pounded with fermented fish sauce (฿40-60), grilled chicken by the half or whole bird (฿80-160), and sticky rice by the woven basket. Larb and sai krok Isaan, the sour charcoal-grilled pork sausages, fill the gaps. The night market near the lake is the easy hunting ground; arrive from 5pm, eat well for ฿100, eat like an emperor for ฿200.
The local advantage is reservoir fish. On the Phu Kao-Phu Phan Kham side of Ubolratana, simple lakeside places do whole tilapia crusted in salt and grilled over coals, served with jaew and a mountain of herbs for ฿150-250. Order that, a papaya salad and a large Leo, sit facing the water, and wonder why anyone queues in Phuket.
Top things to do in Nong Bua Lamphu
1. Climb the 600 steps to Tham Erawan
The headline act. Wat Tham Erawan sits just off Route 210 in Na Wang district: a bone-white seated Buddha filling a cave mouth halfway up a limestone cliff, staring out over the rice plain like a landlord surveying his fields. A naga-flanked staircase of roughly 600 steps gets you up there, and the cave behind the Buddha is a proper cavern, high-ceilinged and cool, with views over green-and-gold country from the far side. Entry is free (drop something in the donation box), go before 10am unless you enjoy climbing staircases in a sauna, and carry water.
2. Camp beside the Ubolratana reservoir in Phu Kao-Phu Phan Kham National Park
This twin-mountain park straddles the border with Khon Kaen, and its best real estate is the shoreline of the vast Ubolratana reservoir. The park rents tents and lakeside pitches, and the evening routine writes itself: fishing boats, pink light on the water, total silence after dark. Foreign entry runs ฿100-200 depending on who is manning the booth. Thai families use this place well; foreigners have simply never heard of it.
3. Pay your respects at the King Naresuan shrine
Beside the lake in the provincial capital stands the shrine to King Naresuan the Great, marking his ill-fated 1574 encampment here. Locals treat it with real reverence, and it doubles as the symbolic heart of a province that only got its own name back in 1993. Twenty minutes, no charge, and a better history lesson than most museums manage.
4. Buy fabric where it is actually made at Ban Nong Bua Daeng
Nong Bua Lamphu has a serious weaving tradition, and Ban Nong Bua Daeng is the place to see it working rather than staged. Looms clack away beneath stilt houses, the patterns are local rather than factory-standard, and you buy at village prices from the person whose hands made the thing, for a fraction of what similar cloth costs in a Bangkok mall. Nobody performs for you here; it is a working village that happens to tolerate visitors, which is precisely the appeal.
5. Find the Stone Age at Phu Phra
Up at Phu Phra, the hin lat stone site records people living on this plain in prehistory: tool traces on the rock, a quiet upland setting, a handful of visitors a week. There is no visitor-centre polish and no entrance fee, just the mildly dizzying realisation that humans stood here thousands of years before Bangkok existed. Wear real shoes and pair it with the cave for a day of very old things.
6. Build the perfect Udon to Loei stopover
The smartest way to use this province is as the hinge of a travel day. Leave Udon Thani by 8am, climb Tham Erawan before the heat arrives, eat grilled chicken at the junction, then flag down an afternoon bus continuing to Loei on Route 210; they pass roughly hourly and cost ฿60-90. With a car, add the reservoir for sunset and stay the night at the park. You convert dead transit time into the best day of your Isaan leg.
What to skip
The lesser caves. The province signs its way to a supporting cast of caverns beyond Erawan, and most are a dim hole with a strip light, a damp Buddha image and a strong smell of bat. Unless you are a dedicated speleologist, one magnificent cave is enough; ticking off four mediocre ones will eat your day and give you nothing but wet shoes. Climb Erawan, feel smug, move on.
Also, temper your expectations of Nong Bua lake itself. It is a pleasant municipal waterfront for an evening stroll and a plate of som tam. It is not, whatever the brochures imply, a destination.
Nong Bua Lamphu travel: practical info
Come between November and February, when the air is cool enough for 600 steps and the plain is still green. March to May is brutally hot; the climb at midday in April is genuinely unwise. A half-day covers the cave, one night covers the town and shrine, and two nights with a car covers the park, the weaving village and Phu Phra without rushing.
Onward travel is the province’s quiet strength: Loei and the Mekong at Chiang Khan sit about 90 minutes west, Udon Thani an hour east, Khon Kaen a couple of hours south past the reservoir, and Nong Khai with its Laos border crossing within an easy morning. Bring cash (cards are for hotels), expect little English, and forget Grab; songthaews and polite negotiation do the job.
Wikipedia’s Nong Bua Lamphu entry covers the 1993 carve-out from Udon Thani.
TAT’s official Nong Bua Lam Phu page has the current park and cave practicalities.
FAQ
Is Nong Bua Lamphu worth visiting?
Yes, for half a day to two days. The draw is Tham Erawan, one of the best cave temples in Thailand, plus lakeside camping at Phu Kao-Phu Phan Kham National Park. It works best as a stopover between Udon Thani and Loei rather than a week-long destination.
How many steps does Tham Erawan have?
Roughly 600 steps run from the temple grounds up to the cave-mouth Buddha. A reasonably fit adult does it in 20-30 minutes with photo stops. Go early, carry water, and expect jelly legs on the way down.
Is Tham Erawan the same as Erawan Falls in Kanchanaburi?
No. Erawan Falls is the seven-tier waterfall in Kanchanaburi, five hours the other side of Bangkok. Tham Erawan is a cave temple in Nong Bua Lamphu province, in Isaan, on the road between Udon Thani and Loei. Same mythical elephant, opposite ends of the country.
How do you get from Udon Thani to Nong Bua Lamphu?
Buses and minivans toward Loei leave Udon Thani’s Bus Terminal 1 all day. The ride to Nong Bua Lamphu town takes about an hour and costs ฿50-80; the Erawan cave junction in Na Wang is around 45 minutes further.
How many days do you need in Nong Bua Lamphu?
One night is the sweet spot: climb the cave in the morning, see the Naresuan shrine and the night market in town, sleep cheap or camp, and continue to Loei or Udon Thani the next day. Add a second night only if the reservoir camping tempts you, and it should.
Related guides
- Loei province travel guide
- Best parks for running in Udon Thani
- Sala Keoku sculpture park in Nong Khai
