Lt. j.g. Drew Ferraro describes navigation onboard the Coast Guard Cutter Hamilton to Philip Laidlaw, Deputy Chief of Mission, July 25, 2018, during Sail Cartagena de Indias 2018 in Cartagena, Colombia. Laidlaw came aboard to tour the Hamilton while moored Cartagena. (U.S. Coast Guard photo by Ensign Kiana Kekoa)