The format for the show is a franchise that originated in the Netherlands by Talpa. The four-episode series is produced by ITV Studios Australia and filmed at the Penrith Whitewater Stadium in Penrith, New South Wales, in Sydney's western suburbs.

Answer this question based on the passage: where is the tv show cannon ball filmed? Okie... think carefully first, then make a decision:
To answer the above question, the relevant sentence is: The four-episode series is produced by ITV Studios Australia and filmed at the Penrith Whitewater Stadium in Penrith, New South Wales, in Sydney's western suburbs. So, the answer is the Penrith Whitewater Stadium in Penrith , New South Wales , in Sydney 's western suburbs.