Hakone is about a 1.5-2 hour train ride from Yokohama in the direction toward Mount Fuji. We took a sky-tram up to a famous hot spring area, then the sky-tram down towards a large lake, a boat across the lake, a short hike through some woods, and spent a little time at a local foot spa.
"7 year old egg"--supposedly colored that way from the sulfur, but more likely just cooked and painted black ;)
We also spent time at a foot spa, but I'll spare the pictures, as it is just of our legs and feet...