San Phra Kan

San Phra Kan is a Hindu-Buddhist shrine in Lop Buri built on the laterite base of an 11th-century Khmer structure, and today it’s better known for the crab-eating macaques that have taken over the ruins than for the shrine itself. Entry is free, daily from roughly 05:30 to 18:00, on Narai Maha Rat Road in the old town.

The site’s history is genuinely tangled. Ancient stone tablets found here suggest the original Khmer building was a Theravada Buddhist temple before it was converted into a Hindu shrine. By the mid-20th century the central image — a standing, four-armed Vishnu — had lost its head; rather than leave it faceless, restorers fitted it with the head of an Ayutthaya-style Buddha image, so the statue you see today is a genuine hybrid of both traditions. Lopburi civil servants raised funds to rebuild the shrine building itself in 1951-52, with backing from then-prime minister Plaek Phibunsongkhram; the Applied Thai-style structure standing now was completed and opened in May 1952.

Watch out: the monkeys are the main event, and they’re bold about it. Vendors sell bananas and peanuts at the gate, and troops of macaques groom, squabble, and doze across the shrine’s pedestals and ledges. They’re also confident pickpockets — leave loose food, sunglasses, and anything dangly out of sight, and don’t make direct eye contact with a large male if you’d rather not test his patience.

A pedestrian bridge built specifically for the monkeys connects San Phra Kan to Phra Prang Sam Yot, the three-towered Khmer prang directly across the road — troops move between the two sites throughout the day, and the pair are usually visited together. Sam Yot charges its own small entry fee (around 50 THB for foreigners); San Phra Kan itself does not. A couple hundred macaques hold this stretch of old town as home territory, out of a wider Lop Buri population estimated at close to 2,000.

Insider Tip: if you’re in town on the last Sunday of November, don’t miss the Lop Buri Monkey Festival — the city lays out a full banquet of fruit and vegetables for the macaques right around San Phra Kan and Sam Yot, and it draws a genuinely festive local crowd alongside the monkeys.

Getting here is easy from Lop Buri train station — it’s a short walk or a quick tuk-tuk ride into the old town. Cover your shoulders and knees out of respect for the shrine, and keep bags zipped and held in front of you the whole visit.

Pair the visit with Phra Prang Sam Yot across the road and Prang Khaek a short walk away — both are part of the same Khmer-era cluster in old Lop Buri.