"Beach" or "beach area" means that portion of state parks or recreation areas designated for swimming activity including the sand, a 200-foot buffer of land surrounding the sand or a designated area which is fenced in, and the water area contiguous to the beach as marked by swim buoys or swim lines.
"Metal detector" means a portable electronic device carried by an individual used only for detecting metal above or below the surface of the ground.
Iowa Admin. Code r. 571-64.1