Pippa Middleton has written about her recent experience with Cyr wheel at Cirque du Soleil, see link below.

Pippa Middleton in Cyr Wheel

http://www.telegraph.co.uk/journalists/pippa-middleton/10402392/Pippa-Middleton-the-joys-and-six-packs-of-Cirque-du-Soleil.html