Yosemite tent cabins - hantavirus
Stayed in tent cabins in Yosemite decades ago; thought they were a pretty poor alternative.
Even had they been cleaner, with virtually no space between cabins and only canvas walls between neighbors, it meant sharing every sound w/ adjacent tent cabins. Our tent cabin had many rodent droppings. Not yet aware of the Hanta virus problem, we were lucky that our vigorous sweeping of the floor didn't stir up real trouble!