In Yamaguchi Prefecture, RV Park × Shio-Katsu HARBOR has opened for overnight stays in motorhomes and campervans. The facility, certified by the Japan RV Association, offers four pitches, 24-hour toilets, 100V power, water supply and free waste disposal. The rate is from 5,500 yen per night per vehicle, with check-in from 13:00 and check-out by 11:00; reservations can be made by phone or online until 20:00 on the day of arrival. A barrel sauna is available on site, with cooling in a private water tub using submarine spring water; the nearest hot spring, Takasegawa Kisen Hato no Yu, is a short drive away.