Towadako Onsen (十和田湖温泉スキー場) is a ski resort located in Towada, Aomori Prefecture, Japan. It offers 2.1 km of slopes and 3 lifts, catering to skiers and snowboarders of all levels. The resort is situated near Lake Towada, the largest crater lake in Honshu, and is part of the Oirase Keiryu Onsen ski area. The resort has a range of amenities, including restaurants and accommodations, and is a popular destination for winter sports enthusiasts.