A seal has been rescued after strong tides dragged it into Wylfa power station on Anglesey.
The RSPCA said the young grey seal was trapped in a large watery chamber with no means of escape.
Two inspectors eventually got the "quite feisty" creature into a rescue container and he was freed unharmed at Cemaes Bay beach.
It is the second seal to be rescued at the plant this year - the other was an adult male released in June.
RSPCA inspector Mike Pugh said the seal was quite feisty and it took a while to get in into the rescue container.
"He was completely unharmed by the ordeal and took to the waters with great gusto," he added.