Yes you can they have covered tables with built in grills . you have to reserve that space.
If camping, yes, at campsites. Not on beach.
No and Yes. Day Visitors, can not. Jacksonville does not allow open fires on it's beaches. Campers can on their sites
Yes
Yes. Me and my folks went camping last weekend here and grilled and fried food the whole time we were there.
Yes you can
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