Tag Archives: caving

Craters of the Moon National Monument and Preserve


If you seek an otherworldly experience right here on Earth, look no further than Craters of the Moon National Monument and Preserve in southeastern Idaho.  In the 1800s, this massive lava flow proved an obstacle to avoid for immigrants on the Oregon Trail.  In 1969 it truly earned its lunar label by serving as a field school on volcanic geology for NASA Apollo astronauts. 


Boy Scout Cave, Indian Tunnel, cinder cones, tree molds

Must-Do Activity

The 7-mile loop road is paved and provides parking at several trailheads, including the wheelchair-accessible Devils Orchard Nature Trail.  Cinder cones, lava tubes, and tree molds are some of the unique volcanic features seen from the trails.  If you come here in the winter the loop road closes due to the amount of snow they receive at 6,000 feet elevation, but you can still explore on snowshoes and cross-country skis.

Best Trail

If you cannot make it to the incomparable Lava Beds National Monument in northern California, you can explore a couple of short lava tube caves here.  To explore Indian Tunnel you will need a free permit, but you do not even need a flashlight.  That is not the case inside the pitch black Boy Scout Cave.

Instagram-worthy Photo

Unlike the moon, there is life here despite its blackened, rocky appearance.  Hearty syringa bushes and limber pine trees sprout from cracks in the lava providing food and cover for sage grouse, pika, and other animals. 

Peak Season

Summer, but it can get very hot on the black rocks without any shade.




$20 per vehicle or America the Beautiful pass

Road Conditions

The 7-mile loop road is paved, but other all roads into the monument require a heavy-duty 4×4 with excellent tires.


There is a first-come, first-served campground near the visitor center off Highway 93 that provides water, but no RV hookups.  Backpacking is allowed in the wilderness area.

Explore More – In what year did the nearby town of Arco, Idaho became the first community in the world to utilize nuclear power?

Coronado National Memorial


There was no international border in 1540, but this valley in southern Arizona is where Francisco Vasquez de Coronado’s expedition crossed into the U.S.A.  His Spanish army marched north in search of the Seven Cities of Cibola, discovering multiple pueblos (including Pecos) and establishing a route for missionaries to follow. 


Coronado Cave, Montezuma Pass, Coronado Peak

Must-Do Activity

The park does not actually contain a statue or large memorial to Coronado.  It does have a steep three-quarter mile trail to a 600-foot long limestone cave bearing his name, which visitors can explore on their own with flashlights.

Best Trail

From the parking area at Montezuma Pass it is half a mile to Coronado Peak.  This “sky island” at 6,864 feet in elevation offers excellent views north towards the Huachuca Mountains in the surrounding Coronado National Forest and south into Mexico.  From there, Joe’s Canyon Trail leads 3 miles down to the visitor center and works great with a car shuttle. 

Instagram-worthy Photo

The small but educational visitor center provides information on trails, the history of the Coronado expedition, wildlife, and the “I Hike for Health” program.  Plus, you can dress up in replica Spanish Conquistador armor, which is very heavy.

Peak Season






Road Conditions

Paved to the visitor center and a good gravel road the final 2 miles up to Montezuma Pass.


Coronado National Forest surrounds the memorial’s 4,750 acres, offering both campgrounds and free dispersed camping.

Explore More – Disillusioned by not finding the Seven Cities of Cibola, in which present-day state did the Coronado expedition turn around in 1541?

Top 10 Caves in National Parks  

Some of our favorite units in the National Park Service system include caves.  Here is a list of our 10 favorites.  We now have a page just for all of our Top 10 lists.

  1. Hawai‘i Volcanoes National Park (Hawai‘i)

Thurston Lava Tube is an electrically lighted half-mile walk through a high-ceilinged cave.

  1. Cumberland Gap National Historical Park (Kentucky)

Reservations are recommended for the ranger-guided two-hour tour of Gap Cave.

  1. El Malpais National Monument (New Mexico)

Short lava tubes are open to the public if you pick up your free cave permit at a visitor center.

  1. Great Basin National Park (Nevada)

Lehman Caves is only 0.6 miles long, but it is full of beautiful formations, like Parachute Shield.

  1. Wind Cave National Park (South Dakota)

Boxwork is an uncommon cave formation and 95% of the world’s known quantity is right here (see photo at the top of page).

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  1. Mammoth Cave National Park (Kentucky)

The many tour options will keep you coming back to this wonderful park.

  1. Timpanogos Cave National Monument (Utah)

Start by hiking switchbacks up 1,092 feet, then your ranger guide will show you the gravity-defying helictite crystals.

  1. Jewel Cave National Monument (South Dakota)

The Wild Caving Tour here is reportedly the most difficult in the entire National Park Service System.

  1. Lava Beds National Monument (California)

Pick up a guidebook and chart your own course through dozens of unlit lava tubes.

…and finally our #1 cave in a National Park!


  1. Carlsbad Caverns National Park (New Mexico)

Visit this incomprehensibly huge cave during the summer to witness the Evening Bat Flight Program.

Honorable Mention

Sequoia National Park (California)

Having not yet visited Oregon Caves National Monument, we will defer to Crystal Cave for this spot since it is the first cave Scott ever entered in 1988.

Jewel Cave National Monument


Sometimes overshadowed by nearby Wind Cave National Park, the third-longest mapped cave system in the world is located within Jewel Cave National Monument.  Thick calcite crystals are the sparkly jewels that adorn the walls of this gem in the Black Hills of South Dakota.

Jewel Cave.JPG


Lantern Tour, Scenic Tour, Wild Caving Tour

Must-Do Activity

The Wild Caving Tour is reserved for those willing and able to squeeze through the 8.5 x 24-inch crawlspace located out front of the visitor center.  It is a taste of what is to come during sections like the “Brain Drain.”  Thick layers of manganese will permanently stain clothing worn by those brave enough to take this epic 4-hour journey that crawls less than half a mile past rare hydromagnesite balloons and gypsum flowers.

Best Trail

Most of the forest within the monument has burned, but Canyons Trail makes a 3.5 mile loop from the visitor center or Historic Ranger Cabin.

Instagram-worthy Photo

Most cave tours do not allow you to touch anything, but on the Historic Lantern Tour at the historic entrance to the cave (summer only) you can feel the 4-inch long calcite crystals (also called dogtooth spar) that formed like a bathtub ring as water slowly drained out.

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Peak Season

Summer when the Historic Lantern Tour and Wild Caving Tour are offered.




None to park, but there is a charge for all tours.

Road Conditions

All roads paved.  Note that the Historic Lantern Tour at the historic entrance to the cave is not at the main visitor center where the elevator is.


None, but plenty of places at Custer State Park, Wind Cave National Park, and Black Hills National Forest.

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Wild Caving Tour patrons have to prove they can squeeze through this 8.5×24-inch crawlspace.

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Thick layers of manganese will permanently stain clothing worn on the Wild Caving Tour.

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Ranger at the entrance for the Historic Lantern Tour.

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This formation is known as “Madonna and Child.”

Explore More – How many miles of the cave’s passages have currently been mapped?