Favorite thing: The surf was great for both kids and surfers. I could imagine that in the right conditions there could be an undertow
Fondest memory: Next to Oceanside is Ocean Beach. Big waves and very windy. Good for surfer, but I think it's too chilling for suntan.
Go to the beach and enjoy the beach all to yourself with the locals.
Fondest memory: The sunset and the beautiful serenity of the walking path along the shore, like the picture below.