She says she doesn’t want to be seen as “just a big whale in the pool” and hopes “to show that big girls are beautiful”, according to The Mirror.
'Hollyoaks' actress - and lads' mags star - Gemma Merna will also be donning a bikini for the contest's second series.
The pair will be joined by TV presenter Michaela Strachan, Diversity star Perri Kiely, and former 'EastEnders' actor Ricky Groves in the first round of heats.
Rumoured contestants for the further heats include model Danielle O'Hara, 'Daybreak's' Anna Williamson and The Saturdays' Una Healy. Along with Paul Ross, who confirmed he's taking part in the show to his brother Jonathan Ross during a recent TV interview.
Take a look at the stars preparing to dive in below...