Is this place first come first serve? Or do I need reservations?

Both. But reservations are recommended.

Reservations are required for drive in sites with parking. There is a small campsite in the back that is first come first serve but it is for people biking and walking in.

Don't waste your time just go and get your spot

Both ways. But the reservation is the best way.

As of right now, both. State Parks started a new reservation system and the plan is to go site specific in the near future.

Reservations are the best way to go.

Both, reservations recommended

Its first come first serve for the beach portion. And parking is $12 for all day or you can pay hourly too.

Both

Reservations