Descend into Flagstaff’s hidden basements and steam tunnels on this 75-minute walking tour. Expect saloon lore, an underground bowling alley and ghostly hospital halls paired with practical advice on what to bring and how to prepare.
More ways to explore the area's outdoor wonders
You step off Route 66 into a narrow alley and the city changes pitch: footsteps echo, brick breathes cool air, and a guide calls your attention to a door that most passersby never notice.
Difficulty
moderate
Duration
1–1.5 hours
Fitness Level
Moderate—participants should be comfortable walking on uneven surfaces, climbing stairs and tolerating tight spaces.
Wildlife
History
Flagstaff grew around the railroad and timber industries in the late 1800s and later became a key stop on historic U.S. Route 66, leaving layered architecture downtown.
Conservation
Tours pass through fragile historic fabric—follow guides, avoid touching delicate surfaces and respect private property to reduce wear on these sites.
Reserve your spot on the Flagstaff Underground today and enjoy a trusted, highly rated experience designed to help you make the most of your adventure.
Meet at Firecreek Coffee
Arrive 10 minutes early at 22 Historic Route 66 to check in and grab a snack before the tour departs.
Watch your head and step
Many spaces have low clearances and uneven stairs—wear sturdy, closed-toe shoes and keep hands free to steady yourself.
Bring a small flashlight
Some basements and tunnels are dim; a headlamp or compact flashlight helps you see details and navigate safely.
Be respectful in fragile spaces
These are historic structures—avoid touching fragile surfaces and follow guide instructions to minimize impact.
Closed-toe walking shoes
Protects feet on uneven cellar floors and stairways.
Compact flashlight or headlamp
Improves visibility in dim basements and steam tunnels.
Light jacket or layers
Underground spaces can feel cooler than outside, especially in the high desert.
Reusable water bottle
Staying hydrated is important in Flagstaff’s dry climate before and after the tour.
summer