Low-tide on the 22nd November was 14:19. About 1 hour 20 minutes prior to that the water was already so low that one could see the bottom-dwelling cone-fish.
The tennis ball had washed up on the steps so I threw it back in, as I understand they can only survive for a few minutes out of the water.
About 20 minutes later we were passing back and noticed that a rather proud juvenile gull had scored a goal with the tennis ball.
Look at that smug little bird-face.