Map doesn't show separate path between St Chester Ave and the pond, that follows the curve to join up with the path that runs parallel to St Johns Wood. Photos are from the curve, the first looking along St Chester, second looking along St Johns Wood.

via StreetComplete 21.2

Attached photo(s):
https://westnordost.de/p/16686.jpg
https://westnordost.de/p/16687.jpg