Question: what to do izu peninsula?
Answer: Check Out the Hot Springs in Atami. ...  See the Ocean View from Atami Castle. ...  Visit the Orchid Resort in Dogashima. ...  Climb to Cape Irozaki. ...  Trek Along Kawazu's Waterfalls. ...  Swim at Shimoda's Beaches. ...  Learn a Piece of History in Shimoda. ...  Visit Shimoda Aquarium.