The 35-year-old had breast cancer then problems with her ovaries.
�Just getting fitter has helped because my bones are really bad. I am in menopause from having my ovaries out,� Ms Ferguson said.
�I�ve met a lot of really lovely people and the ladies conspired to knit me a boob,� she said.
�One brought the pattern and another knitted it one week I wasn�t here and it is better than any prosthesis.�
Ms Ferguson is far from alone in her cancer journey, with a handful of women and one man taking part in circuit training in a group fitness room of the Kwinana Recquatic Centre.
Cancer Council WA is calling for enrolments for next term and also offers meditation and yoga classes in Rockingham.
The classes are for people undergoing cancer treatment, or those who completed cancer treatment in the past two years.
Exercise physiologist Natalie Hancock said the various stations meant participants were exposed to aerobic and weight-based activity and took part in walking and stretching at the end of the session.
�The City of Kwinana is pleased to be able to play host to such an inspiring program that helps both cancer sufferers and their carers exercise in a supportive group environment,� Kwinana Mayor Carol Adams said.