I forgot to post this last week. I know I was going to, and then one thing led to another and it was Christmas.
This little monster had managed to find its way up the river and park near a bridge. There was a woman near me when I started taking photos of this seal, and she told me that when it saw a fish, it would move so fast, it was unbelievable. I went back a couple of days later and it had gone. The RSPCA (Royal Society for the Prevention of Cruelty to Animals) had been in contact with the vets around the corner and it has been taken to the seal sanctuary round the coast slightly.