Storks communicating without sounds
Genbudo Cave with an invisible phenomenon of reversing polarity
The tide flows in spite of calm surface of Maruyama River
You can witness the landscapes of Toyooka that contrary phenomena happen at the same time. A bus will run through the town slowly. Such a strange thing of the tour is tourists won't utter a word during the tour. This will enable tourists to hear inaudible sounds or invisible sceneries.