MISSION BAY. Built in1925 by sugar magnate John D. Spreckles, this amusement park reopened in the late 1980s and is the only beachside amusement park in southern California. Perhaps the biggest draw is the Giant Dipper, the original wooden roller coaster. The Plunge, at 175' the largest indoor heated pool in California, has its fans, too, as does the Wavehouse, a huge fitness center that shares the same building. If you're looking for family fun, head over to the Pirate's Cove ­ a 7000 square foot indoor playground. Shopping and dining options are abundant. Closing hours vary seasonally, and the park is closed mid-week during some winter months; please call for details.

MISSION BAY. This is San Diego's most popular destination. View seals, walruses, manatees, polar bears, penguins, and of course, Shamu, the killer whale. The park also features Wild Artic, an exhibit dedicated to aquatic life from the polar regions. Although Sea World is a research center, they also offer a playland and rides. Best time to visit is in the off season or on a weekday during summer.