Quarry lake nature park

Khao Ngu Stone Park

Mueang Ratchaburi, Ratchaburi, Ratchaburi, Thailand

A cancelled limestone quarry reborn as a free karst lake park. A suspension bridge and boardwalk ring the flooded quarry, paddle boats cross the green water, and a Dvaravati era Buddha is carved straight into the cliff face. It delivers Krabi style limestone scenery a short drive west of Bangkok, without the crowds and without an entry fee.

Khao Ngu Stone Park's flooded former limestone quarry lake in Ratchaburi.

Khao Ngu Stone Park's flooded former limestone quarry lake in Ratchaburi. Photo by Timpoj, CC BY-SA 4.0 via Wikimedia Commons

Hours

Single report

Daily, 8:00 am to 6:00 pm (stated by one travel blog only, the Trip.com listing does not confirm hours and says to contact the attraction).

“Daily, 8:00 am – 6:00 pm”

yourthaiguide.com · Checked 24 Jul 2026

Price

Official source, current

Park entry is free. Paddle boat rental is 20 baht for adults and 10 baht for children per 20 minutes. Separately, one other blog (yourthaiguide) adds that some areas may charge 10 to 20 THB on weekends, while the free source does not mention any weekend charge.

“เปิดให้เข้าชม ทุกวัน ไม่เสียค่าใช้จ่าย (translation: "Open to visitors every day, no charge / free admission")”

thai.tourismthailand.org · Checked 7 Aug 2026

Age suitability

Not verified

Not verified. No source we checked states this, so it stays blank instead of guessed.

Checked 24 Jul 2026

Caveats

VERIFY re-fetched all three cited sources fresh on 2026-07-24 and all three snippets appear verbatim. PRICE: itsbetterinthailand confirms both "entrance to the stone park is free" and paddle boats at "20 Baht for adults and 10 for children" per 20 minutes, kept at single-report tier (a blog, no operator or aggregator…

4 sources checked for this venue.

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