This morning, you’ll visit Erawan National Park, where you can explore the seven-level waterfall or simply swim and relax. The falls are considered the most beautiful in the country, with glacial blue waters rushing through the forest into bamboo-shaded pools. If you want to make the climb all the way from level one to level seven, it’s about a 1.5-hour hike. After lunch, travel back to Kanchanaburi, where you'll learn about a tragic part of the area's history at Hellfire Pass Memorial, which was built to honour the Allied POWs and Asian conscripts who died while constructing some of the most difficult stretches of the Thai-Burma Death Railway. Travel to Nam Tok Train Station – the end of the original death railway station during World War II, which was constructed by the allied POWs. Ride along the historic tracks alongside the Kwai Noi River, passing through Tham Krasae Station – one of the most beautiful panoramic scenes of the river. After arriving at Kilen Train Station, transfer back to the hotel. Tonight, you have the option to head into Kanchanaburi's famous night markets and try a variety of Western Thai dishes.