Arizona caves and waterfalls are equally awe-inspiring natural wonders, and this road trip leads you to some of the best of each that Arizona has to offer. The entire route is just shy of 550 miles, or 12.5 hours of driving time. We recommend spending the night at several of the stops (many have campgrounds) to get the most out of the trip. Let's begin our journey to these caves and waterfalls in Arizona.

Here is the Google Map with exact addresses and directions to each place.

1. Kartchner Caverns State Park (Benson)

Just outside of Tucson, Kartchner Caverns State Park features over two miles of underground passages. On the eastern side of the Whetstone Mountains, this ancient limestone cave system boasts the world's longest stalactite formation. It's known as a "living" cavern because its speleothems, or mineral deposits, are still actively growing after 50,000 years. You might even spot some bats! Tours are offered daily, and there are hiking trails above the caverns available for public use. You can even take a lantern-lit cave tour of the caverns, too! Take a visual tour of Kartchner Caverns:

2. Colossal Cave Mountain Park (Vail)

Tucked away in the high desert landscape, Colossal Cave Mountain Park spans a whopping 2,400 acres of rugged beauty. A variety of different cave tours are offered, ranging from 40 minutes to 3.5 hours in length. Whether you're in the mood for a leisurely, family-friendly stroll, full-blown spelunking adventure, or something in between, everyone is guaranteed to have a blast -- it's hard not to when you're exploring millions of years of cave formations six stories below the earth's surface. Above ground, you'll find hike and bike trails, horseback riding, a petting zoo and butterfly garden, cafe, and campsites. See what it’s like to explore Colossal Cave:

3. Tanque Verde Falls (Tucson)

Although cave temperatures are typically cooler than surface-level temps, it can still get stuffy underground. The solution? Hop in a waterfall-fed pool afterward! A 1.8-mile trail is all that stands between you and the 80-foot Tanque Verde Falls. The hike isn't too difficult, though it does include a steady ascent and steep, slippery rocks throughout. Nevertheless, the breathtaking views of this natural wonder are well worth the effort! To access the trailhead, drive east on Tanque Verde Road toward Reddington Pass. Take a look at the hike to Tanque Verde Falls:

4. Seven Falls (Tucson)

Among the most popular hikes in Tucson, Seven Falls is a nature lover's paradise; after all, it does boast seven waterfalls! Save for a handful of water crossings, the trail at Seven Falls is relatively straightforward and easy to navigate. When you come to a fork in the road, just head left to find the falls, which cascade down a series of rocks before spilling into the pool below. From swimming to soaking up some rays to simply closing your eyes and listening to the peaceful sound of rushing water, there's much fun to be had. This hidden waterfall is truly wondrous.

5. Romero Pools (Catalina State Park)

Another Tucson-area hike, Romero Pools is a 5.5-mile adventure through Catalina State Park. Although more challenging than the previous two hikes -- it's virtually all uphill -- the reward is sweet enough that you'll quickly forget about the difficulty. The pools feature several sets of falls and promise to rejuvenate weary hikers with their invigorating waters. Whether you take a dip or just simply stop and enjoy the views, this trail is truly unforgettable.

6. Lava River Cave (Flagstaff)

Perhaps the most unique cave Arizona has to offer, this 0.75-mile natural wonder was formed about 700,000 years ago when lava erupted from a nearby volcanic vent. The outer edges solidified while lava in the center flowed out, creating a hollow tube now open to the public year-round. Make sure to bring a couple of different sources of light, closed-toed shoes with good traction, and warm clothing -- it's near-freezing in the cave all year! Lava River Cave isn't simply one of Arizona's coolest (literally!) natural wonders, it's also a total hidden gem.

7. Fossil Creek (Gila)

The waterfall at Fossil Creek is among the most popular in Arizona, and for good reason -- the trail to reach it is short, sweet, and easy. After just one mile of hiking, you'll come upon this unreal sight guaranteed to leave you awestruck. Surrounded by lush greenery and moss-covered cliffs, a steady stream of crystal-clear water flows into an even more pristine pool.

8. Cave at Fossil Creek (Gila)

Not everyone knows this, but Fossil Creek is home to another incredible natural wonder: a hidden cave. You'll find it at the end of an eight-mile hike, the Bob Bear Trail, and the turquoise waters will be calling your name after the long trek. This area is utterly breathtaking and will have you questioning whether you're still in Arizona -- or a tropical paradise.

Have you been to any of these Arizona caves and waterfalls? If so, which spot do you like best? Did we leave off any of your favorite Arizona caves or Arizona waterfalls? Let us know in the comments below!

And for more epic adventures in The Grand Canyon State, be sure to peruse The See And Do-It-All Bucket List For Everyone In Arizona.