Phimai Boat Races.

Every November, the Chakkarat River beside the ancient ruins of Phimai Historical Park becomes the stage for the Phimai Boat Races, a thrilling centerpiece of the town's annual festival. Dating back to the Ayutthaya period, this 600-year-old tradition began as a way to train soldiers in strength and coordination. Today, it is a high-energy spectacle featuring sleek, traditional long-boats powered by highly trained crews competing for the Royal Cup. The setting makes the event unique; the races unfold in the shadow of Thailand’s finest Khmer-style stone temples. Visitors can watch the action from the riverbanks, graze through a replica ancient market selling local Isan delicacies, and stay into the evening for dramatic light-and-sound performances.