It is mostly casual but if you want to go dressy you would not feel out of place
Smart casual.
They want your $, go naked, have fun. Buy a dozen margaritas. That's what they want
I say dress for the occasion. I think they've seen it all because they are right on the marina. And maybe after working or playing on your boat you just want and ice cold beverage. Go on in and enjoy.
Go how ever you want if you have money it don't matter
You can if you like. Not required.
I've seen cargos and a hoody, but you may feel out of place.
It can be, but mostly casual.
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