TenOC wrote:
Look at one of the "senior bus tours" They see YS in 1-2 days. You can see the MAIN sites in a day or all of YS in a lifetime.
Ummm...I think you would struggle to drive both loops in a day, particularly in the busy summer season when you get stuck in traffic. Certainly not if you stop at the prime sites.
If you actually took time to stop at the visitor centers and main sites immediately adjacent to the road (ie: no hikes), I would think 3 days minimum and those would be mostly full days, no relaxing back at the RV.