Vet Peter Haworth said exposure to cold water in the English Channel had resulted in Crush suffering from “cold stunning”, which causes the body to shut down.

“I learned quite a lot about these creatures when we treated another Loggerhead Turtle a few years ago, and I knew that we needed to bring Crush’s temperature back up”, he said.

“It’s vital this is done slowly, however, and we’ve been adjusting the temperature of the water gradually over a number of days, because rapid temperature changes are dangerous and can be fatal.

“Despite her ordeal, Crush seems to be happily swimming around her tank, which I’m topping up with fresh seawater every day.

“As New Era is a 24-hour hospital, Crush is being cared for round-the-clock by our day and night teams, and we are all hoping she continues to do well.”