Take the Izukyu to Shimoda Station (下田駅) and from there take a Tokai bus bound for Dogashima (堂ヶ島) for about 50 minutes, and get off at the Matsuzaki bus station (松崎). By car, take the Tomei Expressway to Numazu IC (沼津) and from there using the Chuo Expressway it is about 1 hour and 45 minutes