very nice tour, we were picked up from our hotel around 7:30, we were given a snack on the bus (juice, muffin fruit..), we pass through boulder city, we stopped first at the bridge and nice view / pictures of the dam, we had another brief stop on the Arizona site for pictures, then went to the dam, we joined a guided tour and went down , saw the pipes, the generator room then went back up, we spent about 2 hour at the dam, the guided tour was about 35 min, the rest was free time, walking around, go to the observation deck, we had lunch (on our own) before going back, the tour took about 6 hours, it was excellent, weather was really nice, our guide Bill was excellent, very knowledgeable and did an excellent job