Just bought new RV need places to ride and camp besides glamis and pismo

I just bought a 40ft rv and I own a 4 seater razor looking for fun things to do with the family that involve riding and camping.. We did glamis this year on New Years which was awesome and the reason I bought a motorhome.. Now looking for things to do in the summer that are not only fun for me but also fun for the kiddos. I have 4 all under 8.. We are kinda like the Brady bunch! Lol