In 1992 Fiennes led an expedition that discovered what may be an outpost of the lost city of Iram in Oman. The following year he joined nutrition specialist Dr Mike Stroud to become the first to cross the Antarctic continent unsupported; they took 93 days. A further attempt in 1996 to walk to the South Pole solo, in aid of the Breast Cancer Campaign, was unsuccessful due to a kidney stone attack and he had to be rescued from the operation by his crew.