Although it was early, glad we took the 8 AM tour before it got extremely hot. Pleasantly surprised when a real person answered right away when we needed to call for walking directions to out pick up location the morning of our tour. Our tour guide, Pam, provided so much interesting information about the history of Las Vegas, Boulder City, the Hoover Dam, and more. She was also very accommodating of my use of a walker, getting it in and out of the van at stops without making it seem like a burden.