Last weekend I went to Oita on business. Last saturday I went to some sightseeing spot, the most impressing spot was New Sapporo beer factory. If you reserved before, whoever can visit the faxctory. After visiting you can sample beers and soft drinks, beer is limited by three glasses.
We stayed Hosenji Onsen in Oita. There isn't so famous, then there are a few big hotels there. I could take a hotspring after a long absence.