Onioshidashi can be counted as world’s one of the three best scenic spots in Asama Plateau. This is a field of lava rocks made by Mt. Asama’s explosion in 1783, when the lava blew off from the crater and solidified, the natural rocks were created. You can enjoy a walk in the nature trail at “Onioshidashi Park”, watching the beauty of Alpine plants. Come and experience the extremely artistic beauty of natural rocks produced by mother nature.