Nepal Special. Paddy, Freddie and Chris set out on a high-altitude voyage from Kathmandu to the Forbidden City of Lo Manthang, through the highest mountains, deepest gorges and harshest terrain on the planet. 1/1. Paddy, Freddie and Chris set out on a high-altitude voyage from Kathmandu to the Forbidden City of Lo Manthang, through the highest mountains, deepest gorges and harshest terrain on the planet.