Mission Bay is popular for waterskiing, although the bay is often polluted, especially after a heavy rain. As a general rule, it's best to get out early, when the water is smooth and the crowds are thin.
Seaforth Boat Rentals. Boats and equipment can be rented at the Mission Bay or Coronado locations. 1715 Strand Way, Coronado, San Diego, CA, 92118. 888/834–2628. www.seaforthboatrental.com.