The Grand Canyon. The Hoover Dam. Death Valley. The American Southwest is filled with marvels both natural and man-made, and the professional tour guides at Sweetours know all of their secrets. Whether they're venturing onto the Skywalk on the West Rim of the Grand Canyon, exploring the art of hydroelectric power at the Hoover Dam, or gazing at the series of colorful Navajo-sandstone cliffs that make up Zion National Park’s Grand Staircase, tour groups shuttle between their hotels and their eventual destinations via comfortable coaches. At the helm of each trip is a knowledgeable guide capable of answering questions and deflecting circling vultures with a single withering glance.