An interpreter will kindly guide you around Yashia wetland (about 700 m), talking about various topics according to your interests on plants, birds, and insects observed to how Kirigashima highland and Yashima weltand have been made. All the courses are wooden, you may join just with normal sneakers. Held 4 times a day; children welcome. No reservation needed (if reserved, appreciated; for a goup one needed).