Lifeguards provide a variety of important service to park visitors from cautioning swimmers about rip currents, providing rescue to swimmers or administering first aid for minor injuries.They monitor swimming activities in the protected areas, provide assistance to beach-goers, engage the public in conversations about the beach environment and advise of hazards such as rip currents, over exposure to the sun, jellyfish stings, staying hydrated in the summer sun and heat by drinking plenty of water. 2015 Lifeguard Beach Operations Set for the Seashore - Cape Hatteras National Seashore (U.S. National Park Service)