Grand Canyon and Hoover Dam Day Trip from Las Vegas with Optional Skywalk. Hit the highway out of Las Vegas and spend the day touring the Grand Canyon and Hoover Dam. On this day trip you'll have four hours at the Grand Canyon, with the option of walking on the popular Grand Canyon Skywalk for panoramic 360-degree views. Book with us and Save 50% Off Grand Canyon and Hoover Dam Day Trip from Las Vegas with Optional Skywalk.