LALALALA LAL LA LAND!!!!! I HEART LA so so much. I've been fortunate to be able to spend months at a time and even gotten to live in the golden state. Where I was born, Newport Beach, is an hour south of LA (on a day without traffic). I've spent countless hours just being absorbed in the water, mostly....but the West Coast is know for it's usually cold waters. No worries, if you're traveling for summer, I'm sure you'll be fine. It's really not that cold...😉. When i'm packing for LA, I ALWAYS bring either a scarf or sweater/sweatshirt. It can get a little cool in the mornings or at night.
