Nigel finishes his journey with a risky trip into the heart of the jungle for a face-to-face encounter with a jaguar.

Nigel goes south to look at the grasslands on the edge of the swamp where he encounters a giant anteater and witnesses a jaguar hunt.

Nigel goes deeper in to the wetlands in the hope of seeing more jaguars.

Nigel and his team finally see some jaguars when they encounter 3 in 24 hours.

Nigel travels down the Cuiaba River where he gatecrashes a caiman dinner party, swims with giant otters and meets bulldog bats.

Nigel Marven travels to the world's largest wetland in Brazil in pursuit of jaguars. Nigel tussles with a caiman and has a painful encounter with a false water cobra.