Day trip: the Shakotan Peninsula and Yoichi whisky
West of Otaru begins the Shakotan Peninsula, Hokkaido's only marine national park: sheer cliffs, capes with hiking trails (Cape Kamui, 40 minutes on foot along the ridge, June to October) and a blue the Japanese call "Shakotan blue". By rental car from Otaru (CHF 50, about EUR 54, per day) you reach the cape in 1.5 hours; a glass-bottom boat in Bikuni costs CHF 10, and a sea urchin bowl in season from June to August CHF 25 to 40 (the sea urchin then comes fresh from the water in front of the restaurant). It also works by bus from Otaru (CHF 15 one way, 2 hours, few departures), and guided day tours from Sapporo with a stop in Otaru cost CHF 70 to 100. Halfway lies Yoichi, 25 minutes by train from Otaru (CHF 3): the Nikka whisky distillery of 1934, built on the Scottish model by Masataka Taketsuru, with a free tour including three tasting glasses (book online), stone buildings, coal-fired stills and a museum. Yoichi is also doable by train in winter, when Shakotan lies under snow. Together with sushi in the evening, that makes a full, inexpensive day.