I was at the Beach today from ~noon until 5pm.
The sand there is very soft and dry from our lack of rain. I saw at least 6 vehicles get stuck. Half required a tow out and half eventually made it after several tries backing up and getting a good run-up at it in a different track. This was just as they were entering the beach. I couldn't tell you how many got stuck further down.
I would consider bringing tire chains and a tow strap just in case. Another good idea is to bring a portable air compressor and drop your tire by 10-15 psi then re-inflate when you get off the beach.
Be careful and be safe.