Swimmers crawl through the swim portion of the Quantico 50M Pool, on Aug. 18, 2103. The pool is scheduled to open on May 24, 2014 for military members, their families , retirees, and DOD civilians without changes in pricing from last year. - Swimmers crawl through the swim portion of the Quantico 50M Pool, on Aug. 18, 2103. The pool is scheduled to open on May 24, 2014 for military members, their families , retirees, and DOD civilians without changes in pricing from last year.