Day 1
Tokyo → Hakone by Romancecar, ryokan evening
Morning
Book the Odakyu Romancecar VSE or GSE from Shinjuku to Hakone-Yumoto (85 min, ¥1,870 base fare + ¥1,000 limited-express surcharge). Seats are assigned; reserve at least a day ahead on the Odakyu app or website. The train has panoramic windows at the front — aim for the 1A or 1B seats for unobstructed views of the valley.
Afternoon
Take the Hakone Tozan Railway switchback train from Hakone-Yumoto to Gora (40 min, ¥590). This is the only non-rack mountain railway in Japan that reverses direction three times going uphill — pure adhesion traction on steep gradients. From Gora, the Hakone Open-Air Museum is a 5-minute walk: 120 outdoor sculptures including a permanent Picasso pavilion and a free hot-spring foot bath mid-garden.
Evening
Check in to your ryokan by 16:00. Dinner is kaiseki multi-course, served at a fixed time in your room or a communal dining hall — typically 7–10 courses. The onsen routine: large communal bath (gender-segregated) or private bath booking. The rhythm is soak → kaiseki dinner → soak again → sleep.