What is Camp Echo in the memoir, Guantánamo Diary?

Camp Echo is the site of Slahi’s isolation hut in Guantanamo Bay. Slahi is transferred there in August 2003. Camp Echo is designed to feel like an entirely different detention site, so that detainees are not aware that they are still at Guantanamo. Slahi is transported to Camp Echo via a disorienting, three-hour boat ride, during which time he is blindfolded, hit, and made to drink saltwater. At Camp Echo, abuse continues, and he begins to hear voices. As a result of this treatment, Slahi confesses to acts of terrorism, ceasing to maintain his innocence as he had previously done. To Slahi, his transfer to Camp Echo marks a “line between [his] past and [his] future” (258).