PUNTA GORDA — For members of the Naval Junior Reserve Officer Training Corps at Charlotte High School, geocaching seems like child’s play. These students have taken the popular hobby, which leads outdoor lovers on a scavenger hunt through the woods using a GPS, to the next level — or maybe back a notch.

“Today everyone has a GPS on their cellphone,” said NJROTC student Dylan Sands, 15, “but what happens when your phone dies and you are out in the middle of nowhere?”