For many travellers Sangkhlaburi is the end of the line, but for many residents it represents the start of a new journey. Few places in Thailand have such a melange of ethnic identities, with Karen and Mon plus a few Lao and Burmese outnumbering Thai. Most were born here, but many came across the Myanmar border looking for a safer, more stable life.
Thong Pha Phum
Overlooked by mountains – and most tourists – Thong Pha Phum is a small but busy junction town that people exploring the national parks of northern Kanchanaburi will probably pass through. About the only things to do in town are stroll through the municipal market, where many of the vendors are ethnically Burmese, and walk out on the suspension bridge over the river.
Sai Yok National Park
The 958-sq-km Sai Yok National Park is home to limestone mountains, waterfalls, caves and some extremely rare animals. Because there are numerous sights right around the visitor centre, along well-marked and maintained trails (most open to bikes), it's easy to explore independently. And it never gets nearly as crowded as Erawan.
Nam Tok is the final railway station. This fact, more than the attractions here, is what brings most travellers. But there is plenty to see and do if you'd rather not just turn around and head straight back. Though the trains stop at the station, the track continues for another 1.5km and you can follow it to Nam Tok Sai Yok Noi waterfall.