6/6 Michael Palin concludes his Himalayan trek on a fishing boat in the Bay of Bengal.
2/5 Burton is too weak to travel so Speke heads for the Rusizi River alone.
BBC Radio 4
5/6 Michael Palin reaches the easternmost end of the Himalayas and continues on to Assam.
Mark Stephen and Euan McIlwraith with outdoor news and views from Scotland and beyond.
BBC Radio Scotland
1/5 Richard Burton and John Speke leave for Africa in search of the source of the Nile.
4/6 Michael Palin leaves Everest base camp to take the high road to Lhasa in Tibet.
Comedian Rich Hall goes to the Lone Star state in search of the real Texas.
Rajan Datar travels to the west Texas borderlands, Tucson in Arizona and Los Angeles.
1/30 Si and Dave explore Suffolk, where they cook a county favourite at Snape Maltings.
Paul Murton visits some of Scotland's best-kept secrets.