About 20km inland from Ōda is Sanbe-san (三瓶山), an old volcano with grassy slopes that reaches 1126m. It takes about an hour to climb from Sanbe Onsen (三瓶温泉) and five hours to walk around the caldera. You can have a dip in the onsen on your return. Day trippers can try the outdoor baths at Kokuminshukusha Sanbesō, where accommodation is available. The area is a popular ski centre in winter. Buses run between Ōda-shi Station and Sanbe Onsen (¥940, 40 minutes, four to seven daily).