From the age of nine, Cobham-Hervey trained and performed in the Adelaide-based youth circus performance troupe Cirkidz for seven years, and was involved in five major productions. When Cobham-Hervey performed in the circus, her specialities were hula hoop, trapeze and acrobatic pitching, but the emphasis was theatrical, and the focus was on storytelling. She attended Marryatville High School. In 2009, Cobham-Hervey became a founding member of an Adelaide circus group called 'Gravity and Other Myths' where she co-devised a show called Freefall, which won the Adelaide Fringe Festival's ‘Best Circus’ award in 2010, the festival's Tour Ready award in 2011 and later that year won ‘Best Circus’ in the Melbourne Fringe Festival, and she won the festival's award for ‘Best Emerging Circus/Physical Theatre Performer’ in 2011. Cobham-Hervey also performed with ‘Force Majeure’ in The Age I’m In, a show which was part of the 2008 Sydney and Adelaide festivals, and toured to 17 regional cities in Australia, and toured in Ireland, Canada and Korea.