I am going to be in Vegas last weekend of Feb and was looking for activities outside of Vegas and especially the Strip. Checked Hoover Dam and there are guided tours offered and they are $30 per person, while you can't buy them online - have you do it on spot.

Last time I was at Hoover Dam it was when you could drive on it but never saw the engine/operating room. Does it worth to drive from Vegas and spend money on that?

Thanks.