Charlie is flyfishing for catfish in the Northern Cape of South Africa, where every angler’s new favourite predator can grow up to 50lbs. They’re not like chalkstream trout – Charlie learns to use a huge fly and attract the fish by ‘slapping’ the water with his line.

For fishing at Vanderkloof, visit Selous.co.za

To watch the full show go to Fieldsportschannel.tv/fieldsportsbritain700