A Sunday evening at Arashiyama Station, last stop on the Keifuku tram line. We're sitting on a wooden bench at the end of the platform, a few metres away from the 7.13 back to the centre of town, trousers rolled up to the knees, six-inches deep in bath-hot water. We wait for half an hour, watching the trams pull in and out. As we leave, an English sign invites us to take a towel for free.
This being Japan, they even give you a plastic bag to carry it in.