When you go to San Diego you should visit the following locations.
Children's Pool La Jolla - See Seals on the beach where they come to sun bathe
Mount Soledad - Sweeping 360 degree views of San diego
Cabrillo National Monument - Beautiful views of Downtown San Diego along with the pacific ocean
Balboa Park -
Ocean Beach - Has Longest Pier on West coast of US
Del Coronado/Coronado Beach -
Whale Watching (When in Season - Late December to Late February)
Old Town
San Diego Zoo
Sea World
Wild Animal Park
Torrey Pines
Sea Port Village
The Midway
Star of India
Belmont Park - Mission Bay