epic 30km-ish loop start/end kuramaguchi train station on eizan line (from demachiyanagi station to kurama station). trail gets pretty isolated at many occasions. bears, boars, tics, leeches. definitely want a water filter and collect as much water as possible at lower levels. once up top can be hard to refill. definitely want 10+ hrs to do it. some pretty tricky turns in places. really need to pay attention. not a trail for unfit and unprepared.