The Tsuta nana numa consist of Tsuta-numa, Kagami-numa, Tsuki-numa, Naga-numa, Hyotan-numa, Suga-numa, and Aka-numa, all swamps that were formed by volcanic eruptions. 

A promenade connecting the swamps called Numa-meguri no Komichi (about 2.9 km, required time is about 1 hour) has been constructed, and you can walk around the primeval forest of beech trees in the area. The Asian skunk cabbage during the time of new greenery as well as the richly-coloured foliage in autumn are particularly splendid. 

*Aka-numa swamp is a little further from the other swamps, at a distance of about 2 km to the northwest. 

The swamps are also optimal for birdwatching because they are rich with wild birds. Bird fans should try walking on the Yacho no Komichi (Wild Bird Lane, about 2.1 km). 

After your walk, you can go to the Tsuta Onsen hot springs nearby. It’s fine to use the hot springs as a day trip. Enjoy the secret hot spring where the water source gushes below you.