Crush was discovered by a dog walker who initially thought she was dead before seeing her move.
She had been swept far from her natural warm-water habitat and was suffering from cold stunning – a potentially fatal condition caused by prolonged exposure to cold water.
After initial treatment in Jersey, she was flown to Southampton on a Loganair passenger flight before being transferred to the Weymouth centre.
Claudine Kirk, from Loganair, said the creature had to be taken to a separate area to be searched “as we can’t put her through the security scanners”.