Blue Peter

Shelley 10th Anniversary (2014x4825)

Air date: Oct 16, 2014

Shelley the tortoise celebrates her 10th anniversary on the programme, and is visited by a vet as she prepares for hibernation. Radzi Chinyanganya and Lindsey Russell take on a mountain bike challenge along a Commonwealth Games track, and Barney Harwood learns how the Thames Barrier helps to protect London from tidal surges.