 an alley rescue crews say the 16 year old was digging a six to eight foot hole in the sand when it collapsed trapping her neck deep rescuers dug for about 15 minutes lifeguards park rangers and firefighters eventually helping lift her out of the sand as they carried her off the beach she flashed a peace sign safety experts are reminding all beachgoers don't dig yourself into a hole much past your knees and be sure to fill holes back when you're done