There is plenty of stuff to listen to depending on what you like to monitor. I would not expect much from the various USAF/USN military air operations side over the holiday (but you never know!)
there have been some changes to the local police/fire comms over the last year or so, but at least some of this (Fire) was monitorable when I was there
I'm sure at least a few of the standard CG net freqs are active:
Scanner Frequencies and Radio Frequency Reference for Coast Guard (United States)
www.radioreference.com
and here is the Walton county page:
Scanner Frequencies and Radio Frequency Reference for Walton County, Florida (FL)
www.radioreference.com