Arizona is home to thousands of hiking trails, but none are quite this unique. With not one but several naturally-formed tunnels along its path, Hidden Valley Trail in South Mountain Park is an adventure for the whole family. The best part? It’s hiding right in the backyard of our state’s biggest city!
This 3.4-mile loop is something of a hidden gem, offering something different from the monotonous South Mountain desert landscape. It’s about a 2-hour hike and is considered moderately difficult.
Alltrails/Greg Anderson
Nicknamed “Nature’s Playground,” the trail features several tunnels. Some are nice and wide…
Alltrails/Alex Carson
…while others prove to be a tight squeeze!
Alltrails/Crystal Sibson
All of the passageways are natural rock formations, a fact you’ll find hard to believe after seeing them in person. Like pieces of a puzzle, the slabs fit together perfectly with zero assistance from mankind.
Alltrails/Jenny Rush
Strikingly similar to underground caverns or perhaps even the undulating surface of Mars, geological wonders wait around every corner. You’ll definitely want to bring your camera to capture the breathtaking scenery.
Alltrails/Ashley Jensen
With several offshoot paths to set off on, rest-assured you’ll never get bored. Just like a choose your own adventure novel, only fate knows where you’ll end up.
Alltrails/Ashley Jensen
Accessible year-round, Hidden Valley Trail is typically crowded. We suggest an early morning hike to beat the crowds (and take advantage of an awe-inspiring Arizona sunrise!)
Alltrails/Lindsey Haas
Have you ever hiked Hidden Valley Trail? Are there any other epic tunnels in Arizona? Let us know if you’ve explored any neat places!
Alltrails/Greg Anderson
Alltrails/Alex Carson
Alltrails/Crystal Sibson
Alltrails/Jenny Rush
Alltrails/Ashley Jensen
Alltrails/Lindsey Haas
OnlyInYourState may earn compensation through affiliate links in this article.
