Helgoland is a small German archipelago in the North Sea. It's known for its distinctive red sandstone cliffs and is a popular destination for nature enthusiasts and bird watchers due to its diverse bird population. The main island of Helgoland is car-free, with visitors arriving by ferry from nearby ports like Cuxhaven and Büsum. The island also has a unique history, having changed hands between Denmark, Germany, and the United Kingdom over the centuries.