We are planning on going to San Diego for vacation next summer. I want to make sure it's a great experience because we RARELY go on vacations. 

We are planning to go to SeaWorld, Legoland and San Diego Zoo's Safari Park. We also are planning a trip or two to the beach. That's at least four days chalked full of fun so far. We're staying for a whole week before making our way back to North Dakota. 

If anyone knows the San Diego area, is there something that is a MUST DO or MUST GO for someone who hasn't done much of anything?