We took a day trip to the Grand Canyon, and this was our first stop on the way there. We parked in the garage near the entrance, but there is free parking across from the dam. The views from the dam are amazing. The size of Hoover Dam is jaw dropping. We opted not to take the tour in to the dam since we were also driving to the Grand Canyon. We enjoyed the experience. It's a must see during a trip to Vegas. It's only about a 45 minutes drive from the Strip. You have to see this constructional wonder.