A professional who monitors activities in swimming areas to prevent accidents and provide assistance to swimmers. Respnsibilities include:

• Cautions swimmers regarding unsafe areas.
• Rescues swimmers in danger of drowning and administers first aid.
• Maintains order in swimming areas.
• Inspects facilities for cleanliness.
• May clean and refill swimming pool.
• May determine chlorine content and pH value of water, using water testing kit.
• May conduct or officiate at swimming meets.
• May give swimming instructions.