In addition to John's comments, most RV clubs have their own rallies. For example, I used to have a Trailmanor TT, and belong to the local branch of the Trailblazers (Nat'l org). They're such great folks, I still belong and attend some of their rallies, even though it's been over three years since I had a Trailmanor. So check out local clubs, clubs for your RV make, etc., in addition to those orgs that John mentioned.