At the end of November, I took a 2-day trip to Lake Kawaguchi. Blessed with clear weather, I enjoyed a beautiful view of Mount Fuji.
The accommodation was at a guesthouse named "Narusawa-sō."
I stayed for one night at 4,000 yen, in a calming Japanese-style room. (Note: The rooms did not have locks, and there were no coin lockers available.)
Furthermore, the innkeeper was incredibly kind, and on the second day, they gave me a lift to Lake Kawaguchi Station.