A former army major swam from Alcatraz dressed as a convict, saying it felt "symbolic" of the way mental illness can make you a prisoner of your mind.
Sally Orange, 49, of Salisbury, completed the ESCAPE Aquathlon, and Escape from Alcatraz triathlon at the former island jail in San Francisco.
She hopes to make the "invisible illness of mental illness visible".
Ms Orange is aiming to raise £50,000 for mental health charities in 2023 through a series of extreme challenges.
At the weekend the adventure athlete completed a 750m swim in the icy waters surrounding Alcatraz, followed by a 5km run on Saturday then the Escape from Alcatraz triathlon on Sunday. Read more