Greetings! I am considering a trip to southern California next September. My plan is to fly into San Diego, and out of LAX, or vice versa. I'd like to spend a few days in the San Diego area, then take the train into the LA area. Can I get away with relying on public transportation in the San Diego area, if I wish to visit within the city? I'd prefer not to rent a van if possible. I imagine I would need to rent one in the LA area (I hope to stay in the Santa Monica area), to visit the different coastal towns. Probably also a day trip to Disneyland. I don't have much interest in Hollywood, etc.