Arrive at any time. There are no planned activities today until the evening welcome meeting, so check out the strip or get tickets to a show for this evening.

Depart for the sandstone slot canyons of Zion, Utah's oldest national park, where monumental cliffs of cream, pink, and red pierce the sky. In the afternoon we get our first glimpse of the park as we hike along The Watchman Trail. This unpaved trail climbs 368 ft (112 m) to a magnificent viewpoint of the Watchman, Temples and Towers, lower Zion Canyon, and the Town of Springdale.

Set out on an unforgettable guided hike to the famed Narrows. Splash, wade, and swim in the cool water of the river that cuts through this stunning slot canyon. Soak up the beauty of the high plateaus, towers, temples, mesas, and some of the planet's tallest sheer sandstone walls. The canyon is narrow, and the river covers the bottom in many places, which means you will have to wade or swim to proceed. Prepare to get wet but the cool water makes this hike particularly pleasant during the hot summer months. During the cooler months, there are available gear rentals including Gore-Tex dry pants, canyon shoes, and neoprene socks. Hiking poles are available for rent year-round. Hiking is not permitted when the river is high from runoff or flash flooding. Runoff mostly occurs in April and early May. Late summer thunderstorms can occasionally produce flooding. If the hike is not possible due to weather, it will be replaced with another activity.

This morning, hike through Bryce Canyon National Park, famed for its maze of multi-coloured rock pinnacles called hoodoo. Keep your camera at the ready to snap shots of these spectacular natural towers that cover the canyon floor. Continue on to Page, Arizona, the gateway to Antelope Canyon, Horseshoe Bend, and the beautiful Lake Powell.

Join a local Navajo guide for a thrilling exploration of Antelope Canyon, a stunning natural sandstone cathedral located on Navajo land and accessible only with an authorized guide. Later, go on a short hike to Horseshoe Bend, and stand on steep vermillion cliffs overlooking a spectacular natural bend in the Colorado River. Enjoy lunch at a family-owned Navajo food truck, a G Adventures–supported project, before continuing on to the awe-inspiring Grand Canyon. Marvel as the Grand Canyon unfolds before you but don't get too close. The land drops almost straight down for more than 1,000m (3,280 ft) into the serpentine canyons below! The gorge is filled with rocky buttes, sheer limestone cliffs, and deep canyons all arrayed in a rainbow of colors. Words defy. This is truly one of the most magnificent sights on earth.

Spend the day exploring this ancient gorge with an expert from the Grand Canyon Conservancy Field Institute. Set out on foot along the South Rim and gain insights on the unique geology and botany of this geological phenomenon, as well as the local human history. After, view iconic park structures at the Historic Village District, then descend below the canyon rim along the Bright Angel Trail to see 2,000-year-old rock art and 250-million-year-old fossils.

Go on a behind-the-scenes tour of Lowell Observatory to see the giant telescopes and learn about the study of astronomy, as well as enjoy a lecture on Mars. Return to Las Vegas, by way of Seligman, Arizona??the birthplace of Route 66. Check out the historic general store and original motels as you discover the legacy of the U.S.'s early transcontinental highway system.

Depart at any time. Want to spend more time in Sin City? Ask your GCO or Travel Agent about booking post-tour accommodation in the 'Entertainment Capital of the World'.