Save 21%: Hoover Dam Tour from Las Vegas by Viator Save 21%: Hoover Dam Tour from Las Vegas by Viator – Save 21%: Hoover Dam Tour from Las Vegas. Deal Start Date: 10/22/2013 Deal Expires: 12/28/2014 Last Updated: Tue, 22 Oct 2013 18:07:13 GMT Keywords: Hoover Dam Tour Other Deals Like Save 21%: Hoover Dam Tour from Las Vegas by Viator: