Malibu's Point Dume Beach has got to be my favorite all time beach. Its a great place to get away from the city and leave your troubles behind. The beach mostly is a private, but you will definitely find beautiful seals and surfers.
Designed by Eric Owen Moss, and surrounded by a series of his projects, this is definitely a must see. As an architect I can appreciate the details, the challenges and the effort that went into this project.
I had a studio in this neighborhood for 3 years. Just take your camera and spend a couple hours walking around admiring the colors and people and odd shops.