Beautiful spot! We are a family of 4 with two teens (15 and 13). We hiked here from the Kamikochi bus terminal. It was our turnaround point and was worth the trip.
Although I couldn't do any mountain climbing or trekking, I made my way to Yokoo, the trailhead.
It was quiet and sparsely populated on a weekday afternoon.
Yokoo Sanso was closed for maintenance, but the toilets were clean and comfortable.
I went there on Friday, July 4th, 2025, and there were far fewer people than I expected. There were absolutely no hikers dressed for mountain climbing near Kappa Bridge. There were only a handful of people. I realized that this was where the real mountain climbing began.