Situated far out in the Baltic Sea, in the open waters between Sweden, Germany, and Poland, geographically, the island of Bornholm feels far away from the Danish mainland. Though only a short flight from Copenhagen, Bornholm’s exceptional position in the Fennoscandian border zone, a geological fault line between a 1.7 billion-year-old granite bedrock in the north of the island, and a 500 million-year-old sandstone layer in the south of Bornholm, makes the island distinct from the rest of Denmark in both landscape and geology. Instead of gently rolling hills, you’ll find towering cliffs with caves and arches, lonely sand beaches, picturesque villages, and a rich history evident in the ruins of castles and forts along the shore. Bornholm is known in Denmark for its exceptionally good weather, earning the nickname…