Town Wall And Moat

Little of Phitsanulok’s old city wall survives intact — what’s left is scattered earthen mounds, a few short brick sections, and the moat that once ringed the settlement, most visibly along Phra Ruang Road on the old city’s eastern side. It’s a fragment worth noticing rather than a monument that justifies a special trip: come for Phitsanulok’s temples and stumble on this as a footnote to the walk between them.

The defences began as an earthen rampart in the Ayutthaya period, laid out in a rough rectangle parallel to the Nan River in a style similar to Sukhothai’s own city walls. They were reinforced under King Maha Chakkraphat in the 16th century, when Phitsanulok — then known as Song Khwae, “the city of two rivers” — sat on the front line against repeated Burmese incursions. The moat, fed by the Nan River, was engineered roughly 12 metres wide at its original scale; today’s remaining stretch is narrower and shallower, but the water is still there along parts of Phra Ruang Road, tracing the old boundary between the fortified core and everything outside it.

Walk or cycle the road and you’ll pick out the shape of the old defences more than a preserved structure: a raised bank here, a stretch of still water there, houses and shopfronts built hard against what used to be a defensive line. It rewards someone who already knows the history more than a cold visitor expecting ruins — there’s no interpretive signage at most points, and nothing that reads as a “site” in the way a temple or fort does elsewhere in Thailand.

Insider Tip: Pair it with a walk to Wat Yai (Wat Phra Si Rattana Mahathat) a short distance away — the moat and wall fragments are easiest to appreciate as context for the old city’s layout, seen on the way to or from the temple rather than as a destination on their own.

Watch out: Don’t expect an intact perimeter you can walk in full — sections are broken up by roads, buildings, and modern development, and some stretches have eroded to little more than a grassy rise.

Bring sun protection for the walk and don’t budget more than 20–30 minutes specifically for the wall and moat — it’s a five-minute stop woven into a longer old-city itinerary, not an afternoon’s sightseeing on its own.