Hiking in Copenhagen, Denmark means following the Øresund where city edges give way to beaches, harbors, and palace grounds. The walk from Copenhagen to Helsingør threads past Bellevue Strand, Dyrehaven, Rungsted, and the Louisiana Museum of Modern Art before reaching Kronborg Castle in Helsingør. It is a region for long, easy miles, sea air, and a shoreline that keeps changing with the light.