There is a little sand left at the lagoon end, but most of the cars you find in parking lots at either end will belong to surfers, boogieboarders and kayakers. At the south end, you'll find some opportunities to explore tide pools. There is limited, free, on-street parking just south of Restaurant Row. There's more free parking just north of the mouth of the lagoon. There are better places than this.
Lifeguards are there, mostly to keep an eye on the surfers.
Both ends of the beach have restrooms and showers.