Khuk Khi Kai

Khuk Khi Kai is a single square red-brick tower — 4.4 metres wide, 7 metres tall — built by the French in 1893 during their occupation of Chanthaburi province’s Laem Sing district. It’s free to visit, daily 08:30–16:30.

The tower’s nickname is grimmer than the structure itself: “khuk khi kai” translates to “chicken dung prison,” from a story that Thai resistance fighters were held on the ground floor while a chicken coop sat directly above, its floor left deliberately open so droppings fell onto the prisoners as punishment. It’s the story every guide and roadside sign repeats — and it’s disputed. Historians who’ve looked for it in French colonial records and Siamese royal chronicles from the 1893–1904 occupation have found no mention of a chicken-coop punishment, and archaeological surveys of the tower found no trace of perches, feeding troughs, or the grated upper floor the story requires. The more likely explanation is that the tower was an observation post, part of the French garrison’s control over the town during the standoff that followed the Franco-Siamese crisis of 1893.

What’s verifiable is more mundane: the French built the tower as part of their 11-year occupation of Chanthaburi, held as leverage in a territorial dispute with Siam, and abandoned it in 1904 when the Franco-Siamese Treaty saw French troops withdraw in exchange for Siam ceding Battambang, Siem Reap, and Sisophon to French Cambodia. The tower’s two rows of narrow slits along its walls are consistent with a watchtower’s need for light and ventilation more than with any purpose-built torture chamber.

Today the site is a small public park built around the tower, listed as a registered ancient monument. There’s no museum, no preserved cells beyond the tower itself, and no exhibition hall — it’s a quick stop, not an hour-long visit, and worth pairing with Tuek Daeng, the French garrison’s old red-brick headquarters building a short drive away in the same Laem Sing riverside area.

Insider Tip: Read the on-site signage for the traditional chicken-coop story, then treat it as folklore rather than settled history — it makes for a better visit if you go in knowing the tower’s real value is as one of the only physical traces of the French occupation still standing in Chanthaburi.

Watch out: There’s minimal shade around the tower and no facilities beyond basic parking, so this isn’t a stop to linger at in the middle of the day — Chanthaburi’s tropical heat builds fast by late morning.

Getting there means driving Highway 3149 into Laem Sing district; there’s no public transport directly to the site, so a rental car, motorbike, or taxi from Chanthaburi town is the practical route.