Many travelers to Las Vegas to experience the Mighty Colorado River by visiting or canoeing the Black Canyon, so-called because of the black volcanic rocks found in the area. The canyons are majestic, red land formations that lead from Colorado toward the Hoover Dam in Nevada. Guided boating and canoeing tours take visitors down the Colorado River as it passes through the Black Canyon. At James M. Robb Colorado River State Park, hiking, rafting, fishing, rock climbing, and swimming are all available. Another bucket list experience well worth the time investment is a whitewater rafting trip through Grand Canyon National Park.