Since 2015 Charlotte Dumas has studied the Japanese island of Yonaguni and the critically-endangered breed of native horses that roam freely across it. A tragic part of the island’s past comes through in her characteristically intimate films and photos. In round glass objects, ballet shoes, or a horse’s girth cloth, a special blue colour recurs to link Japanese nature, the island’s horses, and three young girls, whose spirited independence brings a new energy to Yonaguni.