You'll be able to monitor Carolina Beach Water rescue, some of the hotels, and Kure Beach Rescue. Carolina Beach PD, Wilmington PD and New Hanover Sheriff's Dept. are all encrypted. Wilmington FD, County FD and rescue to New Hanover Regional Medical Center are in the clear on the county P25 system.
You can monitor UNCW and Cape Fear Community College Public Safety departments. Wrightsville Beach PD is in the clear on the New Hanover County P25 system. If you're so inclined you can also monitor Brunswick and Pender County Sheriff's Dept. on the NC VIPER System.
VIPER is used locally by D.E.A and A.T.F. and I've heard them both.
FWIW the military comms, although not constant, do occur.
Hope this helps a bit.