So, apparently the oceano dunes right next door to where we live is the only place in California where you can actually drive you car down onto the beach. We've taken the Jeep down there a couple times now, and... it kicks ass! Short of being on a racetrack, this is one of the most fun things you can do with your pants on.
Jeeps are awesome too... I have even more respect for their 4-wheeling abilities now that we've taken a 17 yr-old factory stock Cherokee out and cruised around the soft-sand dunes for hours with no problem. Just air down the tires to 10psi or so, put it in 4wd-low, and go for it.
You just gotta watch out that you don't do something stupid like drive through deep water on the beach and get ruined like this guy:
