Sidemount diving partial front removal of one cylinder... on March 07, 2011 cave diving dahab technical diving egypt technical sidemount technical sidemount diving technical sidemount diving speciality course tom steiner van den Ouweelen +
Sidemount diving at DDT on January 14, 2011 Abu Talha Canyon Dahab air test egypt sidemount diving egypt sidemount diving red sea technical sidemount diving speciality course tom steiner van den Ouweelen trimix +