Heading to Vegas Memorial Day weekend. We’ve been there a bunch of times, we are taking our adult kids along. It’s their 3rd or 4th time in Vegas. They have requested a day away from the strip. We are planning on picking up a car on Saturday at 7am and heading to Hoover Dam, with a stop in Boulder City along the way for breakfast. We have tickets for the tour already, but plan to upgrade them to the longer tour when we get there. We need to be back to dinner at Lotus of Siam by 7pm. What else can we do out towards Hoover Dam? Was looking at Valley of Fire, or heading to a Ghost Town, but am open to just about anything. Just trying to find something out that way so we are not driving all over the place. Also concerned about how busy things will be on the holiday weekend.