This April 13, 2013 photo shows the Colorado River snaking through the Black Canyon near Boulder City, Nev. Watercraft must be transported through a federal security zone near the Hoover Dam by an ... more 
This April 13, 2013 photo shows the Colorado River snaking through the Black Canyon near Boulder City, Nev. Watercraft must be transported through a federal security zone near the Hoover Dam by an authorized livery service, whether you bring your own gear, rent watercraft or sign up for a guided trip. But some of the guide companies will pick you up at your hotel on the Las Vegas Strip some 30 miles away first thing in the morning and have you in the water before lunch. (AP Photo/Karen Schwartz) less 
1 / 25
Associated Press | Photo By Karen Schwartz
Mon, Sep 16, 2013 11:28 AM EDT