I would like advice on some cool things to do, or dramatic views to take in on our last day. Family of 4 (12/15 yr old daughter's). We were in L.A. A few days, visited Disney on our way down, & have been staying at the Hotel Del Coranado since Tues night. We will have an excursion to the SD zoo & surrounding area tomorrow. We don't fly out until 3:30 on Saturday, so I thought we would check out at 9am and rent a car to return to the airport. That leaves us 4.5 hours to get in a few sites. What would you San Diego experts suggest? I've thought about La Jolla? Sunset Cliffs? Luncha Libre? Any suggestions for a fun half day are appreciated!