I will be speaking at a conference in San Diego in April. I will be arriving at noon on Sunday, and the conference doesn't start until Monday afternoon. I will also have about 4 hours to kill after the conference is over before I have to catch my plane on Wednesday. Can anyone give suggestions for something to do in the afternoon? I have cousins in the area who have offered to take me around, but I'd have to decide where to go. I've been to the Bazaar Del Mundo and the Seaport areas before and enjoyed those. I'd like to try to eat at an In N Out Burger, strange as that sounds. I've heard that the Zoo is impressive but not sure if it is worth the $42 admission.