These things aren't obvious and generally ran against my initial assumptions. If you're planning a similar trip abroad, these might save you some trouble. If you're not, they might (hopefully) whet the palate.
Long before climbing Mt. Fuji was fashionable, the holy mountain represented an arduous spiritual pilgrimage for the Japanese, climbed in straw sandals and white, wrapped robes. These days scaling the peak during the summer season is not quite the same soul-enriching zen experience.