On the drive over you cross the Hoover dam. (e:paul) and I pulled over and walked across. It's really impressive, especially for something engineered before computers, CAD and finite element analysis programs. Constructed in the span of only four years!
On top of it in the 2000s they constructed one of the largest concrete arch bridges I've ever seen. Wikipedia says it's also the highest. It crossed probably double the height of the dam itself.

The water in Lake Mead was many meters under the usual level. You could tell by the bath ring up the canyon walls.
Anyway the dam overlook was pretty crowded with a million tourists, so we skipped the tour of it, and drove down to Boulder Beach on Lake Mead. I'm glad we did.
The water was clear and felt icy cold in the sun. It got deep so quickly. I wonder how many people have swam across from that beach.
On the way back we drove up the Lakeshore Road to Las Vegas. You could see a dry marina that used to be in the water, probably a mile from the actual water now. There were houses perched on a hill, probably sold for a previous water view that now just had the view of a dry gravel pit.









