Had a bit of damage from time to time in my pond, plants at the edge can be trampled. This morning found an untidy rip to the lining, fairly large but fortunately well above the water line. And oddly a 10cm plant and basket, which were on a shelf at the edge of the pond, upside down on the lawn.
So is it (a) human intrusion. I am well down on Dominic Cummings list who is the only person I have offended, albeit very remotely, in recent days
(b) foxes - stuff on line suggests not
(c) a heron? Really?? I have frogs and newts but suspect they would only come if there were fish
(d) cats, at least three neighbourhood cats are seen around there from time to time. How would they move a pot half a metre?
Subject to views I'm going to put some spikes up. Bit extreme but fed up with this. You can get commercial products