A former Royal Marines officer who worked for Nelson Mandela on the peace process in South Africa , he left the services in 1996 to pursue a career in leading expeditions .
Monty Halls is a writer , explorer , television presenter and public speaker .
A former Royal Marines officer who worked for Nelson Mandela on the peace process in South Africa , Monty Halls left the services in 1996 to pursue a career in leading expeditions .
Monty Halls is a writer , explorer , television presenter and public speaker .