← Kashiwaya InnGuide · E-bike days

Gorges & rivers: the other side of the Kiso

Everyone crosses the Magome Pass. Almost nobody crosses the river. On the far bank of the Kiso, a network of quiet paved roads links two of the most beautiful places in Nagano — Kakizore Gorge, whose water runs a green the locals call Kakizore green, and the Atera Valley, famous for its impossibly clear Atera blue. In summer, when the Nakasendo trails bake, this is the ride we send our guests on.

The route

From Kashiwaya you cross Momosuke Bridge — one of Japan's longest wooden bridges, built from local hinoki cypress — and follow low-traffic roads along the far bank. Swim or wade at the gorges, climb to the Koiji Pass viewpoint if your legs ask for more, and finish with a soak at a small onsen or coffee at one of the two good cafes near Nojiri Station. The e-bike flattens the climbs; if a road goes up, the motor goes with you.

Three riding rules we ask of everyone: keep left (use the sidewalk if the road feels unsafe, dismounting to pass pedestrians); walk your bike across wooden bridges — for your safety and the bridge's; and follow our navigation routes, which are designed to avoid private roads and keep you on safe, high-value riding.

Rentals and gear

Kashiwaya guests use the house e-bikes free from 16:00 on check-in day to 09:00 on check-out day; daytime rental (10:00 — 15:00) is ¥4,000 per bike per day. Riders get our route navigation, and we lend out rash guards, life jackets and bear bells for the gorges. One-way is fine too — you can drop the bike at Nagiso or Nojiri Station and hop on the train.

Want it guided — or bigger?

The master runs guided rides through Beyond Nakasendo Cycling, including a full-valley descent: 50 km from the top of the Kiso road down to Nagiso, gently downhill almost the whole way. If you can ride 10 km on a normal bike, you can finish it — and we'd argue it's the most comfortable 50 km in the world.

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