I think most of the areas in Tumbler are a ways from the town. If you go a bit further you could stay at Mount Solitude Lodge, its about 45mins past Chetwnd and ride Silver Sands, but thats 2 hours on your trip so maybe not. There is a open camp on the Heritage Highway about 45mins befor Tumbler.
Tumbler is small, like real small. All the hotels are within a block of eachother, right by the gas stations and beer store. Best place to stay is The Twilight lodge.