I used it for an overnight stay.I was told that it was run as a one-off operation, so they were fully occupied with just the guest rooms and bathrooms (although glamping BBQ was apparently provided).The hot water is a sulfate spring. The public bath at Yamakawa Onsen is a sulfur spring, so I think it has its own spring source.The bottom of the bathtub was lukewarm, so I think it's better to stir it before entering.The website only lists an ice maker and water server, but there is also a microwave oven. There was also a cassette stove next to it, so you might be able to use it if you asked.By the way, I was able to borrow an ice bucket and a large cup, so I think it would be a good idea to ask about what you need when you check in. (Maybe)There are no facilities nearby where you can procure food. If you are approaching from the Bungomori direction, we recommend purchasing a variety of items at ``Super Kaneyoshi'' along the way.As for public transportation, there are shared taxis from Oguni Town, but they do not operate on Sundays (weekdays + Saturdays + holidays only), so you will need to be creative if your itinerary includes Sundays. I think the nearest bus stop is on the Ogunimachi side, but you will need to have some physical strength as you will have to cross a mountain pass. Also, on the Oita side to the north, I think the nearest bus stop is Aso Tsuri, but this one involves a long uphill climb and there is only one bus that runs at 3:00 pm on weekends. When traveling on foot, please be aware that the roads displayed by Google or AU route guidance may not be currently passable. The reason may be that the land used to be a private road or equator, but when large-scale facilities (power plants, etc.) were installed, the land for each road was purchased and is now privately owned. . In fact, there was a gate at the entrance of the road I had intended to take based on the route guidance, and there was a sign saying, ``Passing is prohibited to unauthorized persons.'' National highways, prefectural roads, and roads lined with private houses are safe, but roads that cut through wilderness should be checked in advance.