170619-N-ZU404-069 BOSTON (June 19, 2017) Senior Chief Petty Officer Hector Medina and Lance Cpl. McKenna Stiles sit on top of the left field wall, also known as the Green Monster, during a tour of the historic Fenway Park. The amphibious dock landing ship USS Whidbey Island (LSD 41) and more than 50 tall ships from around the world are participating in Sail Boston 2017, a five-day maritime festival in the Boston Harbor. (U.S. Navy photo by Mass Communication Specialist 2nd Class Jordyn Diomede/Released)