We were there the week before and over Memorial Day this last year. Because it was a "holiday" week and weekend, it was busy. First day there (Wed, I think), pulled in around 11 am, and was full. Found a spot in W Jelly for the night, bookied over there around 9 am on Thurs and snagged a place. Didn't get an electric site, ok with us (solar & gen). We were in site 53, large pull thru, flat, trees. Many sites are in open, shrub areas. Our trailer is 34 ft, and fit 53 nicely.
Stayed there till Tues am and each day the park was pretty full up before or by noon. Lots of open sites on Tues!!!!
Same thing in park, billions of peeples!! Late May & early June are wonderful for weather, but not for the amount of tourist showing up!! If not on a weekend, you should be able to snag a spot during the week easily. Nice park, well taken care of, good hosts that keep an eye on things, and good access to west entrance.
2016 Timber Ridge 280RKS
2003 Excursion XLT V10 4:30 Axles
DualCam HP 450W Roof Solar/320W Portable