Not so easy on & off!
The east entrance road to the vaulted toilet and maybe two spots is a hard packed sand & semi-gravel/rock road. The rest of the roads leading down toward Lake Walker is loose gravel and sand in which I recommend having a four wheel drive vehicle. My class C got stuck and had to be wenched out. FYI, for wrecker services, this area is called Avalon. I did not scout the west entrance road.
Month of VisitOctober