Hokkaido, the northernmost of Japan’s main islands, has a climate that’s closer to Russia’s than the rest of the country’s—and that means winter here, with its sub-zero temperatures and stacks of snow, is a major event. Ski resorts like Niseko Village are internationally renowned, the Sapporo Snow Festival is a highlight every February, and the pop-up ice village on Lake Shikaribetsu is a major tourist attraction. Happily, there are also many ways to warm up, from steaming onsen hot springs to hearty bowls of miso ramen (enriched with butter for added coziness).