From Kawaguchi, you take a local bus to Go-gome ( Fifth Station ) on the north face, to start the five-hour hike to the summit.
The hike up to the summit takes a minimum of ten hours. 
mnli hypothesis: The hike up to the summit takes a minimum of ten hours.  premise: From Kawaguchi, you take a local bus to Go-gome ( Fifth Station ) on the north face, to start the five-hour hike to the summit.