Pa Hin Ngam — the rocks, the tulips and the end of the land
Pa Hin Ngam National Park is the province's signature, and its name — 'forest of beautiful rocks' — is literal. It sits in Ban Rai subdistrict of Thep Sathit district, covers about 100 square kilometres or 62,437 rai, and was created on 19 September 1994 and officially gazetted in 2007, superseding a much smaller 10-square-kilometre park that had existed since October 1986. Two things bring people here. The first is Lan Hin Ngam, a courtyard of wind-eroded sandstone formations. The second is Sut Phaendin — 'the end of the land' — an 846-metre cliff that is the highest point of the Phang Hoei range and marks the watershed between the Chao Phraya basin and the Mekong: rain falling on one side of you reaches the Gulf of Thailand, and rain on the other reaches the South China Sea via Vietnam. And in the wet season the park's grasslands fill with Siam tulips, Curcuma alismatifolia, which is also Chaiyaphum's provincial flower.
When the Siam tulips actually bloom — three answers
This is the question everybody asks about Chaiyaphum, and the sources genuinely do not agree, so here are all three. Wikipedia says the flowers bloom at the beginning of the rainy season, in July. The Thai government's own tourism page says the season begins in mid-June, and lists a festival window running from 1 June to 31 August. A third source says June to August. Plan for roughly mid-June through August, expect the peak somewhere around July, and check with the park before you drive several hours to see them — because in a wet-season-dependent bloom, a year can run early or late and nobody publishing a date in advance can know which. The same flower fields appear in Sai Thong National Park next door, so if one park is past its peak the other is worth asking about.
Sai Thong, Tat Ton and Phu Laen Kha
Sai Thong National Park spreads 319 square kilometres — 199,375 rai — across Nong Bua Rawe, Thep Sathit, Phakdi Chumphon and Nong Bua Daeng districts, roughly 70 kilometres west of the provincial town, and was established in 1992. It reaches 1,008 metres at Khao Phang Hoei and its draws are the Sai Thong waterfall and the Pha Ham Hot viewpoint, plus its own Siam tulip fields. Tat Ton National Park is the easy one: 217 square kilometres in Mueang Chaiyaphum district, only 23 kilometres north of the town, designated Thailand's 23rd national park on 31 December 1980. Its main waterfall is six metres high and widens to about fifty metres in the May-to-October rains, and Tat Fa, Pha Lang and Pha Song Chan falls are also in the park. Phu Laen Kha National Park covers 200.5 square kilometres across Kaset Sombun, Nong Bua Daeng, Mueang Chaiyaphum and Ban Khwao, rising from 200 to 725 metres, and its landmark is Mo Hin Khao — a group of white sandstone pillars on open grassland, inevitably marketed as Thailand's Stonehenge. Two sources give Phu Laen Kha a different ordinal in the national park sequence, 180th and 108th, so we state none.
Phu Khiao — wild elephants, and an ASEAN Heritage Park
The largest protected area in the province is not a national park at all. Phu Khiao Wildlife Sanctuary covers about 1,560 square kilometres — roughly 975,000 rai — across Khon San, Kaset Sombun and Nong Bua Daeng districts, and its species list includes wild Asian elephants, gaur, leopard, clouded leopard and Asian golden cat. Its Thung Kamang grassland, around 5,000 rai at about 900 metres, is a breeding ground for hog deer. Together with Nam Nao National Park — part of which lies in Khon San district, in the Thung Lui Lai, Huai Yang and Thung Phra subdistricts — it forms a single designated ASEAN Heritage Park, 'Phu Khieo Wildlife Sanctuary–Nam Nao National Park'. Note that a wildlife sanctuary in Thailand is a stricter designation than a national park and access is more limited; treat this as somewhere to arrange a visit through the authorities rather than somewhere to turn up. One thing to state plainly because a search result claims otherwise: Chaiyaphum is NOT part of the Dong Phayayen–Khao Yai UNESCO World Heritage site, which comprises Khao Yai, Thap Lan, Pang Sida and Ta Phraya National Parks and Dong Yai Wildlife Sanctuary — none of them here.
The Chulabhorn Dam
EGAT's Chulabhorn Dam, in Khon San district, is a genuine day out and a piece of national history. It was built across the Prom River on the Khun Phai hills in an area called Phu Yuak — EGAT places it in Thung Phra subdistrict and Wikipedia in Thung Lui Lai, and we follow EGAT — and was previously known as the Nam Phrom Dam. Cabinet approved it on 17 June 1969, construction began in January 1970, it started operating in October 1972 and was formally opened on 3 June 1973 by King Bhumibol, Queen Sirikit and Princess Chulabhorn, for whom it is named. It is a rockfill dam with a clay core, 70 metres high with a crest 700 metres long and 8 metres wide, storing 163.75 million cubic metres. Two 20-megawatt generators give a contracted capacity of 40 megawatts and about 57 million kilowatt-hours a year, and the dam irrigates roughly 50,300 rai along the Nam Phrom and 20,800 rai along the Nam Chern. The reservoir sits in the hills at the edge of the Phu Khiao forest, which is most of the appeal.
Phraya Lae, Prang Ku and the January fair
The province's cultural centre of gravity is one man. Phraya Phakdi Chumphon — known locally as Chao Pho Phraya Lae — was a Lao official under King Anouvong of Vientiane who led settlers into the area in 1817 and founded Ban Luang, the town that became Chaiyaphum. When Anouvong rebelled against Rama III in 1826 he sided with Siam and refused to join; he was killed by Anouvong's forces that year, one account placing his death at Rim Nong Pla Thao and describing it as an execution. Rama III honoured him posthumously with the title Phraya Phakdi Chumphon, and his monument stands in front of the provincial hall. The Chao Pho Phraya Lae fair runs there for nine days and nights every 12 to 20 January; the 2026 edition opened on 12 January with more than ten thousand attendees, bai sri offerings, and 3,024 elephant figures presented at the shrine. Also in Mueang Chaiyaphum is Prang Ku, a Khmer-era laterite tower — the province was a small city on the twelfth-century route from Angkor to Prasat Singh in what is now Kanchanaburi. A widely repeated account describes Prang Ku as a Bayon-style arogyasala, one of the hospital chapels King Jayavarman VII built across his empire, but we found that on a single source we could not corroborate and record it as reported rather than as fact.
Silk at Ban Khwao
Ban Khwao district, immediately west of the provincial town, is Chaiyaphum's mudmee silk centre — mudmee being the Thai form of ikat, in which the yarn is tied and dyed to a pattern before it is woven on a hand loom. Weaving is still a household activity here, and the district shops sell pha sin skirts and scarves. The district itself has a good origin story: it was settled in 1806 by people from Ban Khao in Nakhon Ratchasima who, when the new place worked out, sent the good news — khao — home to their relatives, and named the village for it. It became a minor district on 1 January 1955 and a full district in 1957, though the Royal Gazette decree its own record cites is dated July 1958. Fine silk is one of the nine things named in the province's own slogan. What we could not do is verify a Thai geographical-indication registration for Chaiyaphum or Ban Khwao mudmee silk, so we do not claim one — the reputation is genuine and long-standing; the paperwork is unconfirmed.
Chaiyaphum things-to-do FAQ
When can you see the Siam tulips in Chaiyaphum?
Roughly mid-June through August, with a peak somewhere around July — but the sources genuinely disagree and it is worth knowing that before planning a trip. Wikipedia says the flowers bloom at the beginning of the rainy season in July. The Thai government tourism page says the season starts in mid-June and gives a festival window of 1 June to 31 August. A third source says June to August. The fields are in Pa Hin Ngam National Park, in Ban Rai subdistrict of Thep Sathit district, and in Sai Thong National Park next door across Nong Bua Rawe, Thep Sathit, Phakdi Chumphon and Nong Bua Daeng. Because the bloom depends on the onset of the rains, a given year can run early or late and no advance date can be reliable. Phone the park before you drive, and ask about both parks — if one is past its peak the other may not be.
What is the best national park in Chaiyaphum?
It depends what you want, and the province has six to choose from. For the most distinctive landscape, Pa Hin Ngam in Thep Sathit district: about 100 square kilometres, created in 1994 and gazetted in 2007, with the wind-eroded Lan Hin Ngam rock courtyard and the 846-metre Sut Phaendin cliff, the highest point of the Phang Hoei range and the watershed between the Chao Phraya basin and the Mekong. For waterfalls and height, Sai Thong: 319 square kilometres, established 1992, reaching 1,008 metres at Khao Phang Hoei. For convenience, Tat Ton — 217 square kilometres, Thailand's 23rd national park designated on 31 December 1980, and only 23 kilometres north of the provincial town, with a waterfall that widens to about fifty metres in the rains. For the strangest photograph, Phu Laen Kha's Mo Hin Khao pillars. And the biggest protected area is not a park at all: the 1,560-square-kilometre Phu Khiao Wildlife Sanctuary, which has wild Asian elephants and forms an ASEAN Heritage Park with Nam Nao.
Are there wild elephants in Chaiyaphum?
Yes. Phu Khiao Wildlife Sanctuary, about 1,560 square kilometres across Khon San, Kaset Sombun and Nong Bua Daeng districts, lists Asian elephants among its species alongside gaur, leopard, clouded leopard and Asian golden cat. Its Thung Kamang grassland, around 5,000 rai at about 900 metres, is a breeding ground for hog deer. Together with Nam Nao National Park it is a designated ASEAN Heritage Park. Two practical notes. First, a wildlife sanctuary in Thailand is a stricter conservation category than a national park and public access is more limited — arrange any visit through the authorities rather than turning up. Second, the province's own slogan names 'forests of many elephants' among the nine things Chaiyaphum is known for, and the January Phraya Lae fair traditionally involves offering elephant figures at the shrine, so elephants run through the province's self-image as well as its ecology.
What is there to do in Chaiyaphum town itself?
The town is small and its attractions are two. The Phraya Phakdi Chumphon monument stands in front of the provincial hall, honouring the Lao-born founder who sided with Siam against Anouvong's 1826 rebellion and was killed for it; the Chao Pho Phraya Lae fair runs there for nine days and nights every 12 to 20 January, and in 2026 drew more than ten thousand people on its opening day. Prang Ku, also in Mueang Chaiyaphum district, is a Khmer-era laterite tower from the period when the area sat on the route from Angkor to Prasat Singh in what is now Kanchanaburi. Beyond that, the town is a base rather than a destination: Tat Ton National Park is 23 kilometres north, the mudmee silk district of Ban Khwao is immediately west, and Phu Laen Kha National Park extends into Mueang Chaiyaphum district itself. If you are here for a weekend, treat the town as the place you sleep.
Sources & References
- Pa Hin Ngam National Park — Wikipedia
- Sai Thong National Park — Wikipedia
- Tat Ton National Park — Wikipedia
- Phu Laen Kha National Park — Wikipedia
- Phu Khieo Wildlife Sanctuary–Nam Nao National Park — ASEAN Heritage Parks
- Siam Tulip Festival, Chaiyaphum — Thailand.go.th
- Chulabhorn Dam — EGAT
- Chao Pho Phraya Lae fair 2026 — Thai Rath
- Ban Khwao district — Wikipedia
- Dong Phayayen–Khao Yai Forest Complex — UNESCO
- Tourism Authority of Thailand
Primary and official sources are cited above. Government rules, fees and procedures in Thailand change over time and vary by office; always confirm current requirements with the relevant authority before relying on them. BAANLYY never takes paid placement in editorial content.
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