Welcome to the Jersey Shore! Have a great time, but please don't dig too deeply in the sand in Surf City (you could get blown up), feed the seagulls in Ocean City (you could catch a disease), or draw dirty pictures in the sand in Belmar (it's rude).

If you have tummy trouble, don't even think of going to Sea Bright, and if you come to Spring Lake, leave your spear gun at home. Other beaches won't let you eat, pick flowers, fly a kite, gamble or ride a camel.

Many of the beach towns on Long Beach Island, one of New Jersey's most popular summer vacation spots, have laws prohibiting people from digging deeper than 12 inches in the sand. They stem from an accident several years ago in which a teenager died when a deep hole he was digging collapsed, burying him.

This year, the prohibition is for a different reason: More than 1,000 pieces of unexploded World War I-era military munitions were unwittingly pumped ashore during a winter beach replenishment project decades after being dumped at sea. Authorities say they've removed everything they could, but can't guarantee more munitions don't remain hidden.

"How can you tell a kid not to dig in the sand?" asked Faith O'Dell, who lives near the beach in Surf City, where most of the fuses were found. "It's their nature, it's what kids do. And when your kid says, `Why, Mommy, why can't I dig in the sand?' what do you tell them, that they could blow themselves up?"