Might not be out of luck. We are going in February and got spots, I think there were more available. We go to Buttonwood Inlet RV Park. It is the closest to Anna Maria Island, off Cortez Rd, less than a mile from the gulf. Easy drive, walk or bike ride to the Gulf. They have full hook up sites. The "cheapo" sites are right on Cortez Rd, but I don't find it to be too noisy. They renovated last year, we had just had our first child and that was too long a trip with a 4 month old. The old bath house and sites were perfectly fine then, I can only imagine they are nicer now. They have a pool that we've never used in February trips.
We're gone to Holiday Cove before, WAY over priced. Nice RV park... but over TWICE the cost of comparable sites at Buttonwood. We stayed there one time because it was the only close place available for a last minute trip.
If you can't find a spot there, you have options within a half hour of the water that seem nice.
www.Frogcreekrv.com
www.lazyoaksrvpark.com
Little Manatee River State Park (don't know the website)
All three of these are our "backup" parks in case we can't find a spot. I've never been to them, but the reviews were good and the parks look nice and affordable. With a 16 month old and 3 dogs, the closer to the water we are, the better. A 5 minute drive home for naps or dog walks beats a 30 or 45 minute (depending upon traffic) drive every time!!!
There are other 55+ communities in the area, some close to the water, others a little further out.
Not sure if you have ever been to the area before, but it is BEAUTIFUL!!! Bring a bike and some sunscreen! We are super excited for our trip... leave February 15th for the trip down there!!!
2015 Ram CTD
2015 Jayco 29QBS