The walking trail is an important part of Onuma National Park, divided into two routes, east and west. Among them, the eastward line crosses the two big islands, the asphalt road is comfortable to walk, and you can also go to the small rocky beach to get close to the lake, so there are more tourists. The Westward Journey is long and mostly dirt roads. When it rains, it is slippery and there are many mosses growing. It smells a bit like urine when you walk. Because there are few tourists here, it looks very quiet. The crows that the Japanese like screaming happily in the woods are a bit strange to us.