Thinking about adding 1 extra day to our usual 3 night trip to do off strip (non gambling) activity and looking for ideas in the Aug/Sept time frame. So far we have Red Rock Canyon in mind. Not Hoover Dam as we seen it already. Not any machine guns as I have shot plenty. What are the other options? It can be multiple little things or one big thing. What about driving to the mountains? If so, which area and what activities? Would probably prefer taking a shuttle to an activity but will opt for renting a car. How far is Area 51 or the Atomic Test Facility? Maybe a helicopter ride to the bottom of the canyon for a day. What ideas can you offer?