South Carolina beaches usually are hundreds of yards wide at low tide and may only be a mere sliver during high tide. High tide and low tide are separated by 6 hours - be sure to check the tide charts. While the waters are usually calm, certain spots are known for their dangerous currents. These areas are very clearly marked. Normally the beaches do not have lifeguards, so swimming is at your own risk. It is unlawful to walk on the sand dunes, pick sea oats, drive on the beach and litter. While dogs are allowed on most beaches, they are required to be on leashes. Careful enforcement of these laws has allowed South Carolina beaches to remain clean and enjoyable so please respect the coastline.