For travellers riding the heritage Death Railway route from Kanchanaburi, Nam Tok (น้ำตก) is the final destination. But it can also be a starting point for tramping into caves, placid river rowing and luxuriating in water's-edge resorts.
Nam Tok train station serves the eponymous (and not overly exciting) town. A few kilometres north of here, resorts snooze along the riverbanks. For many visitors, a day or two relaxing by the river is reason enough to pass through Nam Tok. Otherwise, explore the southern part of Sai Yok National Park (which includes Tham Lawa) or join the locals picnicking at Sai Yok Noi Waterfall.