Tuboniwa is a natural garden made from lava of Kitayatsugatake mountain. The altitude of Tsuboniwa is about 2237m from the sea level. It has a beautiful hiking course that takes about 30 min. From May to August, there are many highland flowers. Tusuboniwa is so famous flower watching spot. It has a great view of Japanese Alps.
The trail is made from lava. So, you need a nice hiking shoes to walk around. It takes about 30 min for round trip.