The Sky Bridge
English oak, Hampstead Heath
How to find it Walk up to Parliament Hill Viewpoint then follow the track north down a slope. The tree is in the first grove you come to.
The climb This oak blew over in a storm but survived. Its trunk is bent double, creating two arches. Shuffle up from the exposed roots on the west side, then tightrope-walk along the bridge. Descend down a natural slide or through a tangle of branches.
While you’re there Jump into the mixed bathing pond to cool off (ages eight and above only).