4/10. Angellica Bell combines holidaying and hard work on the tsunami-hit Thai island of Phi Phi, Jeremy Sheffield watches whales in Baja, California, and Simon Calder advises another group on how to perk up their package. Ex-110m hurdles world champion Colin Jackson puts his sprinting skills to the test when he sees how far he can go on £500, while Charlie and Tuesday Knowles try to educate their dad Nick in the delights of Walt Disney World, Florida.