U.S. cave coverage
U.S. show cave trip planner
MetricCave helps you plan U.S. show cave trips with cave guides, state hubs, official links, and practical trip-planning notes.
Hover or tap a state to preview live coverage.
National cave directory
Use the directory when you already have a cave or city in mind.
NM / Southwest
Carlsbad Caverns National Park
National Park cave system in southeast New Mexico known for immense chambers, ranger-led routes, and flagship U.S. cave scale.
KY / Southeast
Mammoth Cave National Park
World's longest known cave system in a national park with a rotating menu of ranger-led tours instead of one standard route.
VA / Southeast
Luray Caverns
Famous Shenandoah-area cavern known for large rooms and dramatic formations.
TX / Southwest
Natural Bridge Caverns
Large Texas show cave with multiple tour options and family-friendly attractions.
MO / Midwest
Meramec Caverns
Route 66 show cave in Stanton known for its long guided route, commercial scale, and Missouri roadside-travel identity.
CO / West
Glenwood Caverns
Colorado cave attraction with mountain views and multiple guided cave tours.
OH / Midwest
Ohio Caverns
Colorful Ohio show cave where summer visits split between Natural Wonder and Historic tours instead of one standard route.
AZ / Southwest
Kartchner Caverns State Park
Southeast Arizona living cave where preservation is part of the attraction, with Rotunda and seasonal Big Room tours through one of the country's best-protected public cave systems.
CO / West
Cave of The Winds
Manitou Springs cave park with a family-friendly Discovery Tour, a darker Haunted Lantern Tour through narrower passages, and a larger Williams Canyon adventure setup.
TX / Southwest
Inner Space Cavern
Central Texas cave off I-35 with an accidental highway-discovery story, big decorated rooms, Ice Age bones, and tours ranging from paved walks to real crawl-and-climb caving.
KY / Southeast
Louisville Mega Cavern
Repurposed underground Louisville attraction in a former limestone mine with tram, walking, zip line, and ropes-course options.
SD / Midwest
Jewel Cave National Monument
Black Hills cave known for calcite-crystal surfaces, more than 220 miles of mapped passage, and ranger-guided tours that feel more like entering a maze than walking a single show room.
NV / West
Lehman Caves
Great Basin marble cave known for shield formations and historic ranger tours, but currently suspended for the electrical project with tours expected to return in summer 2026.
OK / Southwest
Alabaster Caverns State Park
Remote Oklahoma state-park cave known for rare gypsum geology and guided tours through one of the region's more unusual public caves.
TN / Southeast
Appalachian Caverns
Northeast Tennessee show cave near Blountville with guided tours and campground-style family-trip appeal.
CA / West
Black Chasm Cavern
While Black Chasm Cavern was likely known about by the local Miwok people who existed in this area long before the gold rush, the first documented exploration occurred in 1854 when a grou...
SD / Midwest
Black Hills Caverns
Rapid City-area show cave with guided tours and living formations in the Black Hills.
AR / Southeast
Blanchard Springs Caverns
Forest Service cavern in the Ozarks known for underground rivers, flowstone rooms, and guided tours.
IN / Midwest
Bluespring Caverns
Indiana cave known for underground boat tours on one of the country's longest navigable underground rivers.
MO / Midwest
Bluff Dwellers Cave
Southwest Missouri show cave near Noel with one-hour guided tours, first-come admission, the Musical Chimes draperies, and a separate reservation-only wild cave tour.
MO / Midwest
Bridal Cave & Thunder Mountain Park
Lake of the Ozarks show cave near Camdenton with year-round guided tours, a constant 60-degree cave, walk-in standard admissions, and add-on formats like lantern and black-light tours.
TN / Southeast
Bristol Caverns
Northeast Tennessee cave near Bristol with a classic three-level show-cave tour, a nightly Lights Out version, and separate river and advanced adventure trips.
CA / West
California Cavern, State Historic Landmark
Calaveras County cave near Mountain Ranch with seasonal guided walking routes, one of California's oldest public cave histories, and reservation-only spelunking trips that go far beyond a standard show-cave walk.
AL / Southeast
Cathedral Caverns State Park
North Alabama state-park cave near Woodville with a 90-minute guided tour, a huge 126-foot entrance, oversized formations like Goliath, and enough park lodging and trails to turn the visit into more than a quick cave stop.
TX / Southwest
Cave Without A Name
Texas Hill Country show cave near Boerne with hour-long guided tours, a 126-step descent to six decorated rooms, and a long-running concert tradition.
WI / Midwest
Cave of The Mounds, National Natural Landmark
Southwest Wisconsin show cave near Blue Mounds with colorful formations, fossil-bearing limestone, a paved 0.6-mile tour route, and seasonal museum-style plus specialty tours.
TX / Southwest
Caverns of Sonora
West Texas cave near Sonora known for dense crystal formations, helictites, and long guided tours through a warm living cave.
AR / Southeast
Cosmic Cavern
Ozark show cave near Berryville with a warm 64-degree guided tour, two underground lakes, Silent Splendor, and reservation-only blacklight tours.
OH / Midwest
Crystal Cave - Heineman's Winery
Put-in-Bay geode cave beneath Heineman's Winery with room-sized celestite crystals and a short cave-and-cellar combo stop on South Bass Island.
PA / Southeast
Crystal Cave, PA
Historic Kutztown show cave with a one-hour tour, a 125-foot descent, and a larger family property built around Pennsylvania's first show-cave story.
KY / Southeast
Crystal Onyx Cave
Family-run Cave City show cave on Prewitts Knob with close-up formations, one-hour tours, and a more personal feel than the bigger nearby cave stops.
TN / Southeast
Cumberland Caverns
Tennessee's longest show cave near McMinnville with more than 27 miles of passageways and a broad menu of walking, adventure, and overnight tours.
KY / Southeast
Diamond Caverns
Historic Park City show cave near Mammoth Cave National Park with dense drapery formations, a decorated wet-cave look, and a strenuous one-hour guided loop.
VA / Southeast
Dixie Caverns
Blue Ridge show cave in Salem with a 45-minute to one-hour tour, named formations, and a larger roadside property with camping, antiques, and a rock shop.
FL / Southeast
Florida Caverns State Park
Marianna state-park cave tour with rare air-filled limestone rooms, CCC-built trails, and a broader Chipola River park day around the cave.
HI / West
Hana Lava Tube
Road to Hana lava tube stop known as Ka'eleku Caverns, with a short self-guided volcanic passage, but the official site currently says it is closed pending an archaeological inventory survey.
CA / West
Lake Shasta Caverns
Shasta County cave trip that starts with a catamaran ride and bus climb before a guided limestone tour through decorated rooms, humid air, and more than 600 stair steps.
AZ / Southwest
Lava River Cave
A mile-long lava tube near Flagstaff with dramatic dark passages and cool temperatures year-round.
KY / Southeast
Lost River Cave
Kentucky cave and river destination with guided boat tours, trails, and seasonal nature programming.
IN / Midwest
Marengo Cave
Southern Indiana show cave known for its 1883 discovery story and two main walking tours, from easy Crystal Palace to longer Dripstone Trail.
CA / West
Mercer Caverns
Gold Country cave near Murphys with a compact 45-minute guided tour, an older stair-heavy feel, and a stronger history than its short route suggests.
CA / West
Moaning Caverns, Adventure Park
Gold Country cave stop known for California's largest public chamber, a 100-foot spiral staircase, and a split between the family Spiral Tour and the high-effort Expedition Tour.
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Recent guide notes
These are the latest reviewed cave pages added or refreshed in the live directory.