Sado is Japan's second-largest offshore island and one of the most extraordinary places in the country — UNESCO-listed gold mining tunnels, a Norwegian-style fjord coast at Senkaku Bay, the Tarai-bune tub-boats of Ogi, and Japan's densest population of crested ibis (toki). The island was a place of imperial exile from the 8th century onwards, which gave it an outsized cultural depth: 30 Noh stages, sumo rings, and the Earth Celebration drumming festival each August. Two days lets you ride the full Osado Skyline mountain crossing, both ferry ports, and the wild north and south capes.
Clone it to your planner, customize dates and stops, then ride. All free.