Fælledparken is Copenhagen's biggest central park — fifty-eight hectares of former common grazing land in Østerbro, now the city's exercise track and its political rally space. Parken — the national football stadium and F.C. København's home — sits at the southern edge. The trim-bane loops the perimeter. The May Day rally and Copenhagen Pride both end here. Four kilometres on a working park.
Four kilometres, a hundred minutes if you walk slowly. Start at Trianglen — the square at the south-east corner, also a Cityringen stop — and enter the park through the southern gate. Parken is straight ahead; the stadium exterior is the warm-up landmark. Loop north onto the trim-banen, the perimeter running path the entire neighbourhood uses.
The middle is the lake — Fælledparken's central pond, with willows and the children's playground a short walk east. The grass between is where the rallies gather; the lawn between the rally lawn and the lake is where people lie down in summer to read.
Exit north into Nørrebro via the gate near Borgmester Jensens Allé. Nørrebro S-tog is fifteen minutes west.