Sangkhla Buri sits far up in Kanchanaburi province, where Khao Laem Reservoir reaches toward the Myanmar border and Thai, Mon, Karen, and Burmese worlds overlap. It is a long ride from Kanchanaburi, but the reward is a town with a mood of its own rather than another river stop.
The headline sight is the Mon Bridge, a long wooden footbridge crossing the lake to Wang Kha, the Mon village founded by Luang Phor Uttama after he fled Burma. Mornings here are lovely: monks cross the bridge, fishing boats move under the planks, and mist hangs over the water before the day turns hot.
The lake is not only scenery. It swallowed the old town when the reservoir was created, leaving Wat Saam Prasob partly visible when water levels drop. Across the bridge, Wat Wang Wiwekaram and its golden chedi anchor the Mon side of town. Further north, Three Pagodas Pass marks the old route through the Tenasserim Hills into Myanmar.
Sangkhla Buri is not polished. Public transport is slow, English is less common than in Thailand's beach towns, and some border trips depend on local conditions. That is part of the appeal. Come for the bridge, the lake, the Mon village, and the feeling of being at the end of Thailand rather than just near it.