Famed for its olive groves and as the setting of the classic film Nijūshi-no-hitomi (Twenty-Four Eyes; telling the story of a village schoolteacher and her young charges), Shōdo-shima (小豆島) makes an enjoyable day trip or overnight escape from big-city Japan. It is mainly appealing for its mountainous landscape, scenic coastal roads and Inland Sea vistas, but also has a smattering of sights.
Tonoshō is the main town and port, and where you can see 'the world's narrowest navigable strait', Dobuchi Strait, which runs through the centre of town. The island is popular during summer and when the autumn leaves are at their prettiest in October and November. Come out of season and you'll find a sleepy isle with very few other travellers.