I picked Ocean Park because it's right across the strand from a popular stretch of beach in Santa Monica. The park itself is pretty small, but the kids were eager to run around exploring.
Big hits here were the slide and ride-on bee. They also had fun running their toys through the sand and trying to see which made it down the slide first: their sand toys or them. Insider tip: Come prepared with a picnic instead of relying on beach fare. The food was nothing special, but cost an arm and a leg. See more at Go Explore Nature: http://tinyurl.com/7fnv2ge