PHILADELPHIA (March 22, 2024) — More than 450 middle and high school students participate in the annual Greater Philadelphia SeaPerch and SeaGlide Challenge (GPSSC) at The Salvation Army Kroc Center in Philadelphia on March 22, 2024. Spearheaded by Naval Surface Warfare Center, Philadelphia Division (NSWCPD), the SeaPerch Challenge began in 2006 while SeaGlide was added in 2017. This year, two dozen NSWCPD personnel volunteered during the competition itself, with more than 20 volunteers from the command building the competition, as well as judging papers and presentations beforehand. (U.S. Navy video by Chief Mass Communication Specialist Chad M. Butler)