Hermosa Beach features beach activities such as Surfboarding, skateboarding or boogey boarding, bicycle riding, etc. Rental shops are located near the pier, so you don't need to bring your own equipment. There are also many restaurants and clubs in the area. Hermosa Beach is a nice area to spend time if you're looking for a laid back atmosphere near the beach.
Getting there: From LAX, a bus ride takes 30-60 minutes each way (including transfers). From the terminal at LAX, take Lot C Shuttle to LAX Transit Center. Get a transfer for the next bus. Proceed to Bus Bay #6 and take Beach Cities Transit # 109 to Hermosa Beach. (Use MTA's Trip Planner to find the best route for your departure time.)
MTA's Metro Trip Planner displays schedules and fare information for LA metro buses and trains. It's fast and easy to use. Simply visit the MTA's website at Metro.net and you'll find the Metro Trip Planner on the top right side of the home page.
MTA's Metro Trip Planner
Time estimate: You will realistically need at least a 4 hour layover for this excursion. On planning for your return trip to LAX, don't forget to allow an additional hour to get through security and walking through the terminal at LAX.