Saraburi · Sao Hai

Wat Khao Kaeo Worawihan

A hillside royal monastery on the Pa Sak whose 34-meter chedi is the landmark, whose naga staircase is a 1990 concrete replica of a 1928 one, and whose founding date rests on a single provincial compilation.

วัดเขาแก้ววรวิหาร · Wat Khao Kaeo Worawihan

By the BAANLYY Editorial Team · Last checked 4 November 2026

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The record

What the official record says

Official nameวัดเขาแก้ววรวิหาร — Wat Khao Kaeo Worawihan
WhereTon Tan, Sao Hai, Saraburi
Royal temple classThird class royal temple, Worawihan (ชั้นตรี ชนิดวรวิหาร)
The sub-rank is stated by the Saraburi Provincial Office of Buddhism in its list of the province's royal monasteries of 30 January B.E. 2569; the class is stated by the Ministry of Culture's record 141252, submitted by a provincial cultural officer in June 2012 and approved by the provincial culture office the following month. A Sangha Supreme Council resolution index carries the same class and sub-rank but that host refused access, so it is an unopened corroboration only. No instrument conferring the grade was found, and none would be expected: the record attributes the elevation to King Mongkut personally.
Monastic orderNot recorded in any register we could read.
Ancient monumentRegistered national ancient monument
Royal Gazette vol. 52, 8 March B.E. 2478, page 3701 — the first national list of ancient monuments, made under section 6 of the Act of B.E. 2477, where this is the last of Saraburi's 27 items and reads, in full: ๒๗. วัดเขาแก้ว อำเภอเสาไห้ ตำบลต้นตาล
Read at source from the department's own scan. The entry is seven words and names no components, no sub-rank, no description and no boundary; the register codes the monument status 1 with no declared area, and its gazette-boundary layer returns nothing for it, which is what status 1 predicts. Three cautions. First, the instrument is an enumeration under section 6 of the Act of B.E. 2477, not a ขึ้นทะเบียน registration, which enters Thai law only with the Act of B.E. 2504 — and the department's own 1990 report calls it a registration three times. Second, that 1990 report cites a part number, ตอนที่ ๗๕, which appears nowhere: the register gives only the page, and the scanned running heads carry the date, volume and page with no part at all. Third, the same report states under a heading on registration that the registered items are three — the chedi, the replica footprint and the ordination hall — and that itemisation appears nowhere in the gazette text. It matters, because it decides whether the sermon hall, the two bell towers, the subsidiary chedis and the 1928 gateway are protected.
Coordinates14.557309, 100.883592
Fine Arts Department register, monument layer, monument 0000777, with the register's point and the map service's point identical; put through the register's own subdistrict polygon layer, which returns Ton Tan in Sao Hai district, the subdistrict both the 1936 gazette entry and the current record state. Note that the Ministry of Culture's open-data record for this temple's own gateway places it about 3.1 km west-south-west of here, which cannot be right for a structure at the foot of this stair
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Founding

When was it founded — and what actually establishes that?

Thai temple histories mix two different kinds of statement, and this guide keeps them apart. What a register, a gazette entry, an inscription or a dated royal act shows is one thing. What the chronicles and the temple itself hold is another, and it is worth telling as what it is.

What the record showsThe register's own origin fields name a single author for everything it says about this monastery's history: องค์การส่งเสริมวัฒนธรรมจังหวัดสระบุรี, the provincial culture promotion organization. Not a chronicle, not an excavation, not an archival document. The register's structured period fields are all set to zero, so the department assigns the monument no period, and its conservation history contains no excavation at all. What the record does carry is this: a consecrated boundary dated 3 April B.E. 2312, which the department's 1990 report attributes to the Department of Religious Affairs' temple register; a restoration and elevation by King Mongkut; a renaming in B.E. 2456 for which the 1990 report cites the published volume on the Supreme Patriarch's inspection tour of the Ayutthaya monthon; a dated builder's inscription on the gateway beam reading บันไดเก๊ากำพันธ์ พ.ศ. 2471, transcribed by the Ministry of Culture; and a royally bestowed kathina presented here on 2 November B.E. 2568.
What tradition holdsThe founding in B.E. 2171, in the reign of King Song Tham, is attributed in every state source to the same provincial culture-office compilation and to nothing earlier. No official body frames it as tradition — the department's register, its 1990 report and the Ministry of Culture all state it flatly as fact — and that absence of hedging on a date with no document behind it is itself the finding. Separately, the Department of Agricultural Extension gives an etymology the heritage record excludes: that clear white crystal-like stone on the hill is said to be the source of the name.

Three apparently independent state sources here are one. The Fine Arts Department register, the Ministry of Culture's record 141252 and the Saraburi provincial planning papers carry identical text down to the same typographical errors, and the register names the single compiler. Counting them as corroboration is counting one compilation three times. The only place the narrative touches a named documentary source is the 1990 report's citation for the B.E. 2456 renaming.

History

The history of Wat Khao Kaeo Worawihan

Wat Khao Kaeo sits on a small hill above the Pa Sak in Tambon Ton Tan, and the thing you see from a distance is the principal chedi: brick and stucco, a base about 6.5 m square, about 34 m high, in the Thai five-spired form with a twelve-indented-corner body, a round bell and four niches, one to each cardinal point, each holding a Buddha image. The Fine Arts Department's measured inventory of November B.E. 2533 is the source of those figures and of almost everything else physical about the place, because this monument has no excavation, no published study and no mural record — and that inventory exists only because something went wrong.

What went wrong was the staircase. In November B.E. 2533 the department's Archaeology Division referred a case: the monument's naga balustrade had been destroyed, and the division described it as เครื่องสังคโลก, Sukhothai ware. The unit that went and looked, from Lopburi, reported on 21 November. The old stair had indeed been demolished and a new one was nearly finished. The abbot explained that the old one was dilapidated and awkward to climb; told that the temple had been on the national list since B.E. 2478 and that alteration required prior notice, he said he had not known the temple was listed. And on the ceramics the field unit flatly contradicted its own head office: the encrustation was mostly material of recent date, mixed crockery sherds and broken bottle glass, not Sukhothai Sangkhalok glaze, and from the surviving naga-head fragments the original work was unrefined, the work of local craftsmen. The division advised that the act breached the Ancient Monuments Act and the Deputy Director-General wrote to the abbot. No prosecution, no restoration order and no reinstatement is recorded.

So what a visitor climbs today is documented: 2.70 m wide, 65 m long, 150 steps, reinforced concrete, built in B.E. 2533 from the temple's own old photographs, in place of a reinforced-concrete stair of about B.E. 2471 whose naga balustrades were inlaid with broken crockery. Neither is ancient, and the Sangkhalok description that still circulates was tested and rejected by the department in B.E. 2533 — though it still heads the department's own file index. At the foot of the stair stands the one genuinely dated object on the site: a gateway whose beam carries the inscription บันไดเก๊ากำพันธ์ พ.ศ. 2471, which independently confirms the date the 1990 surveyor got orally from the abbot. The Ministry of Culture describes that gateway in detail — lotus-bud stucco capitals, a Chinese lion at the apex, arcs at the upper corners with vegetal scrollwork likened to a Roman triumphal arch, and relief figures of soldiers at the inner column feet, hatted and moustached in high-collared Western shirts with a sash, each holding a long rifle.

The file holds one more correction that no published description makes. The four Buddha images in the chedi's niches, which the register, the 1990 survey, the Ministry of Culture and the Tourism Authority all describe as features of the monument, were made by the temple in B.E. 2508: the abbot's own letter of 28 January that year asks permission to take the four newly finished images out to a pavilion by the highway during the annual footprint festival so that people could gild them, with the proceeds going toward building the chedi's enclosing wall. Permission was granted the following month. None of those descriptions mentions it. The register also says relics of the Buddha and of his disciples are enshrined within the chedi, and gives no date and no authority for that.

The older history is where the record thins to almost nothing. The founding in B.E. 2171 under King Song Tham, the halt of King Mongkut's pilgrimage at the landing in front of the temple in B.E. 2403, the elevation to royal monastery with the Pali name คีรีรัตนาราม, and the reversion to วัดเขาแก้ว — all of it comes from one provincial culture-office compilation, which the register names as its own source and which the Ministry of Culture and the provincial planning papers reproduce verbatim, typographical errors included. The one place the narrative touches a named book is the 1990 report's citation, for the renaming of B.E. 2456, of the published volume on the Supreme Patriarch's sangha inspection tour of the Ayutthaya monthon.

On site

What you actually see

The principal chedi: brick and stucco, body base about 6.50 m square, height about 34 m, in the Thai five-spired form with a twelve-indented-corner body, a round bell with บัวกลุ่ม and a ปลียอด, standing on a two-tier terrace of about 11.60 m and 18.30 m square on an earthen mound of roughly 24 by 28 m.

Its four niche images, one to each cardinal point — the 1990 survey records east forbidding the relatives, north in contemplation, west holding the alms bowl, south walking — all four of which the temple made in B.E. 2508, as its own letter of 28 January that year records. No material or lap width is published for any of them.

The ordination hall: brick and stucco, about 23.30 m long, with a timber roof structure in two superimposed tiers and one มุขลด, open porches at both the east and west ends, porch floors in อิฐหน้าวัว, a marble interior floor, and a กำแพงแก้ว around it. Its consecrated boundary is dated 3 April B.E. 2312 in the Department of Religious Affairs' temple register, and the record is that King Mongkut rebuilt the hall.

The replica footprint, about 1.54 by 0.65 m, gilded and set upright with its auspicious marks in a grid and a wheel at the center, in a sala on the chedi's circumambulation terrace to the south-west. The temple repaired it at its own expense in B.E. 2505 and 2506 under a department license, on condition the original form be kept.

The staircase as it now stands: 2.70 m wide, 65 m long, 150 steps, reinforced concrete, built in B.E. 2533 to replace a stair of about B.E. 2471 whose naga balustrades were inlaid with broken crockery and bottle glass.

The gateway at its foot, carrying the inscription บันไดเก๊ากำพันธ์ พ.ศ. 2471, with lotus-bud stucco capitals, a Chinese lion at the apex, and relief figures of rifle-carrying soldiers in Western dress at the inner column feet.

The sermon hall, open-sided, brick and stucco, about 14 by 33.50 m with a timber upper structure and a brick-and-stucco pulpit; the surveyor attributes it to the reign of King Mongkut with the hedge คง, probably.

Two bell towers — one measured at about 1.85 m square and 5.50 m high, which the surveyor compares to Ayutthaya-period bell towers, and an older one to the south that the 1990 photographs show derelict and that the inventory does not measure — and two subsidiary chedis, one on a square base about 3 m across outside the chedi's enclosure to the south-east and one with an octagonal base about 4 m in diameter on the circumambulation terrace to the east.

Visiting

Visiting: hours, admission, dress and photography

This is a working place of worship for millions of people rather than an attraction, and it is treated as one at the gate. Where a figure below is blank, no source we are prepared to cite states it.

HoursNot established from an official source.
AdmissionNot established from an official source.
DressA working royal monastery, so shoulders and knees covered and footwear off inside the halls. No official source states a dress rule.
PhotographyNo source we found states a rule, so we print none.
Getting thereAt number 1, หมู่ 1, บ้านต้นตาล, Tambon Ton Tan, Sao Hai. The Tourism Authority gives about 6 km from the Sao Hai district office and about 7 km from Saraburi town; the department's 1990 route is the Phahonyothin road to kilometer 82, then into Muban Mueang Thong 3 and right for about 3 km. The upper terrace is reached by the 150-step stair, which is the relevant fact for anyone with limited mobility.
Before you rely on the figures aboveNo official source states an admission charge in either direction, and the monument has no declared boundary and no gate operated by the Fine Arts Department — it is an active royal monastery rather than a ticketed site. No Thailand Tourism Directory record exists for this temple, so this province's corrupt hours field did not arise here; the Tourism Authority shows only a live open-or-closed indicator and publishes no schedule, so no hours are given. The monastery received the royally bestowed kathina on 2 November B.E. 2568.
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What we could not establish

Every temple reference repeats claims nobody has checked. These are the ones we went looking for and could not stand up, listed so you know exactly where this page stops.

FAQ

Wat Khao Kaeo Worawihan: common questions

How old is Wat Khao Kaeo?

The record will not support a date. Every state source places the founding in B.E. 2171, in the reign of King Song Tham, and every one of them traces to a single provincial culture-office compilation that the Fine Arts Department's register names as its own source. The register assigns the monument no archaeological period at all, and no excavation has ever been carried out here.

Is the naga staircase ancient?

No. What stands today is reinforced concrete, 150 steps, built by the temple in B.E. 2533 after it demolished the previous stair without permission. That previous stair dated from about B.E. 2471 and was itself reinforced concrete, with naga balustrades inlaid with broken crockery and bottle glass.

Was the staircase decorated with Sangkhalok ware?

The Fine Arts Department tested that claim and rejected it. Its Archaeology Division referred the 1990 case describing the balustrade as Sukhothai ware; the unit that inspected the site reported that the encrustation was mostly recent mixed crockery sherds and broken bottle glass, not Sangkhalok glaze, and that the original work was that of local craftsmen.

How tall is the chedi?

About 34 meters, with a body base about 6.5 meters square, per the Fine Arts Department's measured inventory of November B.E. 2533. No source publishes an elevation for the hill it stands on.

Are the Buddha images in the chedi's niches old?

They are not. The abbot's own letter of 28 January B.E. 2508, in the department's file, records that the temple had just finished making the four images for the niches and asks permission to display them for gilding during that year's festival. Every published description presents them as features of the monument without saying so.

What does it cost and what time does it open?

No official source states either. The monument has no declared boundary and no gate operated by the Fine Arts Department; it is an active royal monastery rather than a ticketed site, and the Tourism Authority publishes no schedule for it.

Is it a royal temple?

Yes. The Saraburi Provincial Office of Buddhism lists it among the province's royal monasteries with the Worawihan sub-rank, and the Ministry of Culture's record gives the class as third. The record attributes the elevation to King Mongkut personally, on completion of his restoration, and no instrument or date for it was found.

Nearby

Where to go from here

Before you go, read the guide to Buddhism and temple etiquette in Thailand — dress, footwear, where photography is not welcome and how to behave around monks. The rest of Saraburi’s temples are covered here too.

Every temple here sits in a place worth reading about on its own terms. The nationwide temple guide covers the other provinces to the same documentary standard as this page, and says on each one what the record establishes and what it does not.

If you are thinking about more than a visit: work out which Thai visa route fits your situation, and see what is available to rent and buy in residences across Thailand.

Sources & References

Sources & References

Last checked 4 November 2026

Every fact on this page is drawn from the sources above. Where they disagree, this page says so rather than choosing silently. Registrations, fees, hours and access change; confirm anything you are relying on with the authority concerned. BAANLYY LLC is a Nevada company and a listing portal, does not represent any temple, and offers no legal or religious advice.