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Grand Canyon Caverns Route 66 Tour
Average
21 reviews · Rated on 1 provider · How we score
- Las Vegas
- Updated November 2, 2026
Trace historic Route 66 from Valentine to Grand Canyon Caverns, then descend 200 feet underground to explore vast chambers and fossils.
About this tour
Follow the spirit of Route 66 from Valentine, Arizona, to the remarkable Grand Canyon Caverns near Peach Springs. This journey covers 87 miles of one of the longest remaining stretches of original Route 66, with a stop to explore the historic ghost town of Crozier Canyon along the way.
At the caverns, descend 200 feet by elevator into the largest dry caverns in the United States. Formed more than 65 million years ago, these immense underground chambers reveal a striking side of the desert landscape. Walk paved paths through the caverns, visit the Chapel of the Ages, and see fossils that include a mummified ground sloth and a 19th-century bobcat. The site also served as a Cold War fallout shelter.
With an air-conditioned vehicle, bottled water, and admission included, this Grand Canyon Caverns Route 66 tour pairs a classic highway journey with an unusual underground discovery. Set out to experience Arizona’s history above and below the desert floor.
Highlights
- Travel through Valentine and Crozier Canyon along historic Route 66
- Descend 200 feet by elevator into the Grand Canyon Caverns
- Explore paved underground walkways and vast cavern chambers
- See the Chapel of the Ages and prehistoric fossils
- Discover the caverns’ history as a Cold War fallout shelter
What's included
Included
- Bottled water
- All fees and taxes
- Air-conditioned vehicle
- Hand sanitizer
- Admission
Not included
- Snacks
- Gratuities
- Lunch
Ratings on each provider
The ratings and review counts each booking site shows for this tour.
-
View on ViatorViator
4.76 / 5 · 21 reviews
Important information
- Service animals are allowed
- Suitable for all physical fitness levels
- The walking tour offers two walkway options based on mobility level
- The underground tour includes an elevator ride and walking; visitors with claustrophobia should take note
How this score is calculated
This score is based on one provider. Viator rates it 4.76 from 21 reviews. We place that rating among all Viator ratings and weight it by its review count. If the tour is found on another provider later, both ratings are combined.
How the score works and rating distribution in Las Vegas
- Each provider rating is turned into a percentile: the share of that provider's ratings it beats, weighted by review counts.
- Listings on different providers are combined in proportion to their review counts.
- Tours with few reviews are pulled toward the average until more reviews come in, so a handful of perfect reviews can't top the list.
- The result is shown from 0 to 10: this tour scores 6.9.
Provider rating distribution in Las Vegas
How many tours in Las Vegas have a provider rating at or below each value. The dashed line is this tour.
- GetYourGuide
- Viator
from $179
on Viator