Seventh of an eight-part travel series.

In Borneo, Helen and Alison venture underground where the caves are five times the size of St Paul's Cathedral, and probe deep in the jungle to stay with a tribe of former headhunters. The Cuban capital of Havana welcomes Andrew and Matt where they tour the city in a classic car and sample some salsa action on the dance floor. In Senegal, Ade and Paul explore Dakar, buy love potions from a local priest and watch a spectacular wrestling match.
(Final part tomorrow at 6.45pm) (Stereo)