That event is called Riverbend - it's a big 10 day concert on the waterfront in downtown Chattanooga. http://www.riverbendfestival.com

Sorry that you're not able to find an RV, but that's not surprising for that time period. Maybe look into some private rentals.

Here is a link to the info I put together for the 2013 Reunion. There are links to hotels, maps and other resources. https://forum.supraboats.com/showthr...t=2013+reunion