Mitake Boulder: Chert Riverbed Bouldering, Best From Autumn to Spring | Japan Climbing Crags
A bouldering area on the Tama River banks in Ome, Tokyo. The rock is mostly chert, ROCKTOPO lists 271 problems from 10-kyu to 4-dan, and ROCKTOPO's season runs October to May because summer is hot and humid. Walk to the river from JR Mitake Station on the Ome Line.