Watercise/Water Walking for Ages 18+ $9 Residents/$11 Non-Residents or monthly $50 Residents/$60 Non-Residents A water exercise class to reduce stress on joints and muscles by using the natural resistance of movement through the water. Equipment will be available for use, but you are welcome to bring your own if you have it. * Tuesdays are held in shallower water * Thursdays are based in deep water Classes are held at the La Mesa Municipal Pool 5100 Memorial DrivePool office phone 619.667.1494 Refund, cancellation and transfer policy applies. Activity Age Category Adult Location La Mesa Municipal Pool Instructor Lifeguard/Instructor .