We will be in Vegas for 5 nights the end of June, beginning of July. We are looking for some non gambling things to do. We have done some shows in the past, and we aren't sure if there are any shows we want to see so we thought we would make this a sightseeing trip. We have been to Vegas a few times and still haven't seen Hoover Dam so we thought maybe we could do that. An ideas for the best way to do that? Should we do some sort of tour package or rent a car and drive out? Any other must sees or dos and best way to do them?