The responsibilities of a summer lifeguard include working to ensure the safety of people at a swimming pool or those who swim at the beach during the summer season. As a summer lifeguard, your exact duties vary depending on the needs of your employer and where you work. In general, you monitor and enforce rules and regulations of the swimming area and perform rescue and first aid services when necessary. It’s your job to keep an eye on swimmers. Some lifeguards also have swim instructor duties. For example, you may provide swimming lessons to children and teach skills that ensure they use the swimming area safely.