"Hoover Dam Tours" Top 5 Page for this destination Lake Mead National Recreation Area Things to Do Tip by johngayton

I didn't actually do this but the Bureau of Reclamation offers self-paced tours of the dam called The Discovery Tour with presentations and talks at strategic locations both within the dam and at the visitor centre.

There can be queues and it is recommended that you allow about 2 hours if you want to go on one.

Website has all the info:

Address: Hoover Dam Visitor Centre
Directions: Pretty obvious really, on the Nevada side.