Mission Bay is an artificial, saltwater bay located south of the Pacific Beach community of San Diego, California, created from approximately 2,000 acres (810 ha) of historical wetland, marsh, and saltwater bay habitat. The bay is part of the recreational Mission Bay Park, the largest man-made aquatic park in the United States.

De Anza Cove Park has a volleyball area, a tot lot, park benches, picnic tables, and a path for jogging or bike riding. There is also a boat launch ramp for both boats and jet skis, and a comfort station with showers. Swimming, boating and water skiing are allowed and there is a lifeguard on duty for the summer months.

Fiesta Island, a large peninsular park located within Mission Bay, is a popular location for charity walks and runs, bicycle races, time trials and other special events. It is also the home of the annual Over-the-Line tournament.

Ski Beach Park is located on east side of Vacation Isle off of Ingraham Street. There is a large grassy area, a picnic shelter with picnic tables, fire rings and a path for jogging or bike riding. Up to two inflatables are allowed. There is a boat launch and ski area on the south side, but no swimming is allowed. There is also a children's playground adjacent to the picnic shelter.