I have yet to try traveling through a cave tunnel via a river/water route before, and I kind of wonder what will the experience be like. Then I start to imagine myself taking a small boat entering a tunnel made by nature. Then as I am about to exit the tunnel, part of a traditional Japanese village is been revealed to me. It would be such an exciting experience, and the sensation of finding such a place would have been incredible. Maybe I should start planning, and I wonder if there is such an amazing place in Japan (most likely there is).
