Cath Pendleton, also known as "The Merthyr Mermaid" is an open water and ice swimmer from Wales.  She is a Guinness World Record Holder for the Most Southerly Ice Swim (female), she achieved this record for becoming the first person in the world to swim an ice mile inside the Antarctic Polar circle in February 2020.

Her story was captured by BBC Wales for a documentary about ordinary people achieving extraordinary things, titled “The Merthyr Mermaid” and it is still available to watch on BBC iPlayer BBC One - The Merthyr Mermaid

She has done many long distance swims, including the English Channel in 2018, and has also represented Great Britain at the World Ice Swimming Championships in Murmansk, Russia in 2019 and won bronze in her age category.

She is always looking forward to new challenges and is truly passionate about encouraging participation in sport, particularly open water swimming.  She really wants to be a great role model for all those that are anxious about dipping their toes in!  She often heard to say “To make me happy, just add cold water!”