For The Gazebos around that area with the tables underneath, Is that first come first serve or do they require a reservation?

First come first serve.

First to claim

First to rise get the prize

Reservation. But if not first come first serve. Have someone go down and hold the spot for you.

First come

You might have to call fir that info

Yep 1st come 1st served

They are first come first served but I think you can get a permit if you plan ahead.