Spiekeroog is also called the "green heart of the North Sea" because of its natural beauty. The East Frisian island in Lower Saxony's Wadden Sea may only be 18 square kilometres in size, but it offers everything you need for a family holiday: unspoilt nature, kilometres of beaches and the endless expanse of the sea. On her island tour, presenter Judith Rakers meets Revolverheld frontman Johannes Strate, among others, and performs in the ring with children at Circus Tausendtraum.