Sandi Toksvig looks at Chad, Jewish communities in India and alien environments on earth.
BBC Radio 4
5/6 Clare Balding meets members of the Shropshire Bereavement Walking Group.
John McCarthy discusses wildlife travel with Mark Cawardine and sees a different Mexico.
4/6 Clare Balding walks the first section of the proposed Gustav Holst trail near Cheltenham.
John McCarthy hears about Casablanca and the future of the Arctic.
3/6 Clare Balding walks on Anglesey with members of the North Wales Gay Outdoor Club.
John McCarthy talks to photographer Don McCullin and looks at how Hungary has changed.
2/6 Clare Balding walks Laurie Lee's Slad Valley with a group of artists inspired by the area.
Peter Curran discusses the delights of rural Turkey and the life of a safari guide.
1/6 Clare Balding discovers the joys of group walking. First stop, Wensleydale.
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