A lifeguard monitors swimmers at the beach or in a pool, watches for hazards, and strives to maintain safety. As a lifeguard, your responsibilities include supervising swimmers and enforcing safety rules. Your job duties can also include organizing group activities, maintaining equipment, cleaning pools, and teaching swimming lessons to swimmers of all ages. You can find lifeguard jobs at public and private beaches, lakes, public swimming pools, hotel or community swimming pools, and public and private schools from grade school to university level.