19/09/2026
Shibuya is a valley. Not as a figure of speech — a notch cut into the Musashino
Plateau, ringed by three of them.
Every street anyone can name is named for the climb out. Dogenzaka. Miyamasuzaka.
“-zaka” means slope. The crossing isn’t a landmark somebody chose. It’s the valley
floor, about 15 metres above sea level, and everything above it runs down.
There was a river at the bottom. In 1961 Tokyo poured concrete over it ahead of the
Olympics and turned the streams feeding it into drains — one of them still runs under
Cat Street. In 2009 the buried stretch stopped being a river in law at all. It was
reclassified as a sewer. The water you can see beside Shibuya Stream today isn’t rain;
it’s treated water piped in from a reclamation plant.
The valley still leaves something you can measure. Well water in Shibuya tests at
24 times the national average for iron, and the river used to run rust-red because of it.
One theory says that colour is where the “shibu” in Shibuya comes from.
The city may be named after the water at the bottom of the hole.
The crowd doesn’t gather at the crossing. It runs downhill into it.
Thu–Sun · 23:00–05:00 · Shibuya
