Summer visit - what to see?

<p>I'm heading over to Chapman for the high school program (whoop!) and am just wondering where the best places to visit are. Here's a list of what I would like to do on my afternoon adventures after class:
- Beach, of course, but what is the closest beach that most people go to, and which is the most secluded?
- trails. I have an ambitious plan of going for morning runs, is there a trail near the campus that would take maybe an hr?
- concerts: id love to experience some of the local music scene, so where would I have a chance to immerse myself?
Thanks a bunch!</p>