Sluice gates, brook goes into a small pond, surrounded by gates. And the brook doesn't really seem to be on the map at all. Needs better in person mapping.

(Access is only via Lake Grove Recreational Space, entrance on Dalkeith Grove)

via StreetComplete 57.4

Attached photo(s):
https://westnordost.de/p/216466.jpg
https://westnordost.de/p/216467.jpg
https://westnordost.de/p/216468.jpg
https://westnordost.de/p/216469.jpg