Look for a sign that says "PARK FACING SOUTH ONLY" and then do as it says. There are two trail heads here about a hundred feet from each other.
To the right is Bowling Ball Beach with a steep decline. The last few stairs are washed out and what remains is more of a ladder than a staircase, but your efforts will be rewarded.
To the left at this pull out area is the trail leads to the beach along the babbling Schooner Gulch, through a dense forest. This is a very short hike, perhaps a quarter mile and once you arrive you will find a small south facing beach.
A lovely bluff top trial and a meadow trail join these two beaches.