I'm curious to know if there is RVing through out the Islands? State, Federal or Private RV Parks? Are there any RV Dealerships there? I can't recall hearing from any RV.Net posters from Hawaii?
I saw one older MH on Oahu in the parking lot of a state park. I'm sure they weren't spending the night. There are facilities for some tent camping but otherwise there really isn't anything motorized.
There are no facilities on Kauai. Considering that it takes just a couple hours to circumnavigate the whole island, it would be hard to get away from it all.