It's tennis season and Countryfile is visiting Kent, where Matt Baker will be finding out about Wimbledon strawberries and getting to grips with the harvest.Naomi Wilkinson is meeting the couple who turned their love of wildlife into an animal rescue centre, looking after everything from hedgehogs to flocks of buzzards. In the shadow of the white cliffs of Dover she'll also be finding out about the long history of channel swimming and donning her wetsuit to try out the ultimate wild swim.John Craven meets a farmer who is growing Chinese vegetables and produce, from pak choi to chrysanthemums, and Adam Henson is at the Royal Three Counties show, meeting youngsters with the farming bug. Plus Tom Heap investigates calls to ban live plant imports and asks what dangers could be hiding in the soil that comes into the country with them.