Blue Peter - BBC1 Weekdays - 19/04/2007

With Konnie Huq, Zoe Salmon and Gethin Jones. Blue Peter gardener Chris Collins pays a visit to the National Pinetum at Bedgebury, where he learns what it's like to be a tree surgeon looking after the world's largest collection of conifers. Gethin meets young Olympic gold medallist hopeful Tom Daley, who talks about his training routine and his ambition to represent Great Britain at the 2012 Olympic Games.