Doctors are sometimes meant to have supernatural powers that can fix anything. "Half a chicken carcass hammered to a cabin door with a large knife saying-you and me are not getting across the Atlantic together." Are just one of the things Dr Mark Parrish had to fix on one occasion while on the HMS Endurance.

Join me and Australian British doctor Mark Parrish talks us through this and other adventures that range from mountaineering expeditions to Afghanistan, India, China and Pakistan; cycling the Nile; and deployments with the Navy and other work.

Be sure to check out his amazing Instagram.

Instagram: @markparrishphoto