It can be also during the week not busy like summer but the campgrounds can be full good idea to,book in advance
It is on the holiday weekend.
Yes it was very busy when we were there
Since kids are back in school it is not nearly as busy as August. You should be able to get a spot on a weekday no problem. Weekends might still be busy. Just be aware, September is still hurricane season an evacuations are not uncommon if a storm were to develop.
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