Save Over $35 on a Hoover Dam & Las Vegas City Deluxe Tour! More Hoover Dam City Deluxe Tour by Gray Line Tours. Escape the bright lights and bustling pace of Las Vegas with a luxurious ride to one of the greatest marvels in the United States on the Hoover Dam City Deluxe Tour by Gray Line Tours. After getting tickets on BestofVegas.com, you’ll be picked up in a luxury motorcoach with great amenities like reclining seats, panoramic windows, a restroom, and television monitors. A knowledgeable tour guide offers up information on the most famous and infamous residents of Las Vegas during this short ride to Boulder City, Nevada, and the Hoover Dam. Enjoy an exquisite view of Lake Mead -- the largest man-made lake in the Western Hemisphere -- as you prepare for a tour of the dam. Go deep into the structure with a two-hour Government Guided Interior Tour of the Hoover Dam.