Sand collapses can occur in holes just a few feet deep. Never dig a hold deeper than it is wide. Children and adults should not dig holes deeper than their knees when standing in them. Sea turtle laying and hatching season is from May through September. Holes in the sand are obstructions for female sea turtles laying nests on the beach at night and hatchlings heading out to sea roughly 60 days later. If you do dig a hole, be sure to fill it in before you leave the beach.