Furusato Kaisokan Hachimensanso

The bath here isn't natural onsen water: it's tap water infused with an artificial radium treatment. There's just one small tub, big enough for about three people at a time, plus a washing area for four. The window doesn't open, but the room looks out over Nakatsu, and on a clear day the view reaches toward the Bungo Channel. A private family bath can also be booked by the hour on certain weekdays. Furusato Kaisokan Hachimensanso sits partway up Mt. Hachimen (八面山). It's built more for groups than a romantic soak: plain tatami rooms, a cafe serving set lunches, and a covered barbecue house, all close to the town's sports parks and gyms, so school and club teams use it as a training-camp base.