Best Caves to Visit in the US: Tours, Reservations, Temperatures
Which cave to pick for scale, formations or an easy walk, how far ahead to book tours and what to wear for 49–56°F air underground.
The best caves to visit in the US are Mammoth Cave in Kentucky, the world’s longest known cave system; Carlsbad Caverns in New Mexico, with its huge Big Room; and Wind Cave and Jewel Cave in South Dakota’s Black Hills. National park cave tours are booked mostly on Recreation.gov, and at Jewel Cave and Lehman Caves they cost $6–$45 per adult as of November 2026. The air inside stays cool year-round, from about 49°F to 56°F in the four big national park caves.
Show caves on public land are run by the National Park Service, while others, such as Luray Caverns in Virginia, are privately owned. The tables below compare tour styles, booking rules and conditions underground.
Which caves in the US are best to visit?
| Cave | State | Why go | How you visit | Inside temperature |
|---|---|---|---|---|
| Mammoth Cave National Park | Kentucky | More than 400 miles of surveyed passages, the longest known cave system on Earth | Ranger-led tours from 30 minutes to 3.5 hours | About 54°F |
| Carlsbad Caverns National Park | New Mexico | The Big Room, one of the largest cave chambers in North America; summer bat flights | Self-guided routes plus ranger-guided tours | About 56°F |
| Wind Cave National Park | South Dakota | Rare boxwork formations | Ranger-guided tours only | 54°F |
| Jewel Cave National Monument | South Dakota | More than 220 miles mapped; crystal-lined walls | Ranger-guided tours, 20 minutes to 4 hours | About 49°F |
| Lehman Caves, Great Basin National Park | Nevada | Dense formations, including rare shields, in a small cave | Ranger-guided tours, 30–180 minutes | About 52°F |
| Luray Caverns | Virginia | Large decorated chambers and the stalactite organ; near Shenandoah | Private, guided or self-paced route | Cool year-round |
| Kartchner Caverns State Park | Arizona | A living, wet limestone cave protected since its discovery | Guided tours run by Arizona State Parks | Warm and very humid |
| Ruby Falls | Tennessee | An underground waterfall inside Lookout Mountain, Chattanooga | Private guided tours | Cool year-round |
What do cave tours cost, and how do you book them?
National park cave tours are cheap compared with private caves, but they sell out. Most are booked on Recreation.gov, often weeks ahead in summer, with some same-day tickets sold at the visitor center.
| Cave | Entrance fee | Tour prices (adult, as of Nov 2026) | Booking window |
|---|---|---|---|
| Mammoth Cave | None | Varies by tour; see Recreation.gov | Tours can sell out weeks ahead; schedules may post 1–3 months out |
| Carlsbad Caverns | $15 per person age 16+ | Ranger-guided tours extra | A $1 timed-entry reservation is needed for the cavern |
| Wind Cave | None | See the park’s fee page; seniors 62+ and ages 6–15 pay half | 120 days to 2 days ahead online; about half of tickets sold same day |
| Jewel Cave | None | $6 Discovery, $16 Scenic or Lantern, $45 Wild Caving | About 30–60 days ahead from May to November; winter season opens in early December |
| Lehman Caves | None | $8–$15; $40 Introduction to Wild Caving | Check 2–4 weeks ahead; some walk-up tickets |
Mammoth Cave’s full tour list is on the park’s cave tours page, and Carlsbad’s fee and reservation rules are on its fees page. For release times and cancellation fees, see our Recreation.gov reservations guide.
What kinds of cave tours can you choose?
Cave tours range from 20-minute walks on paved paths to 4-hour crawls in helmets and kneepads. Pick by stairs, length and how comfortable you are in tight spaces.
- Short introductory tours: Jewel Cave’s 20-minute Discovery Tour and Mammoth Cave’s half-hour self-guided Discovery route.
- Standard walking tours: 1–2 hours on lit trails with stairs, such as Mammoth’s Historic Tour (2 miles, 540 stairs) or Jewel’s Scenic Tour (734 stairs).
- Accessible tours: Mammoth Cave and Wind Cave both run accessibility tours, and Lehman’s Gothic Palace tour has no stairs.
- Lantern and candlelight tours: mostly summer-only, using handheld lights in unlit passages.
- Wild caving: crawling and squeezing in undeveloped passages; age and fitness limits apply.
How cold is it inside a cave?
Most US show caves stay between about 49°F and 56°F all year, close to the area’s average annual temperature, and feel damp. Bring a light jacket even in July, and wear closed shoes with good grip, because trails are often wet.
- Jewel Cave: about 49°F, the coolest of the four big national park caves.
- Lehman Caves: about 52°F and very humid.
- Mammoth Cave and Wind Cave: about 54°F; Mammoth’s entrance areas can be much colder in winter.
- Carlsbad Caverns: about 56°F, a relief from summer desert heat outside.
- Kartchner Caverns: warm and humid, so dress lightly.
Which caves suit families and visitors with limited mobility?
Carlsbad’s Big Room, Mammoth Cave’s Accessible and Frozen Niagara tours, Lehman’s Gothic Palace tour and Jewel Cave’s Discovery Tour are the easiest options. Long staircases are common elsewhere, so read the stair count before booking.
- Young children: choose tours of an hour or less; some tours set minimum ages.
- Wheelchair users: call the park first; accessible routes can depend on elevators, which have had outages at some parks.
- Fear of tight spaces: Carlsbad’s large chambers feel more open than narrow passages at Wind or Jewel.
- Fitness: Mammoth’s Domes and Dripstones (638 stairs) and Jewel’s Scenic Tour (734 stairs) are good workouts.
What rules should you follow inside caves?
Stay on the trail, do not touch formations and follow the guide, because skin oils and dirt damage cave features that take thousands of years to grow.
- White-nose syndrome: this fungal disease has killed millions of bats in North America. Some parks screen visitors or ask you not to wear clothing, shoes or gear that has been in another cave or mine.
- Food and drink: usually only water is allowed in the cave; eat before the tour.
- Bats: at Carlsbad’s evening bat flights, phones and cameras are typically restricted to protect the bats; follow ranger instructions.
- Holidays: Carlsbad Cavern closes on Thanksgiving, Christmas and New Year’s Day.
How do you combine caves with other parks?
Several of the best caves sit near other big sights, so they fit into road trips.
- Black Hills, South Dakota: Wind Cave and Jewel Cave are under an hour’s drive apart and near Mount Rushmore and Custer State Park; Devils Tower is a longer drive north. See our Devils Tower guide.
- Southeast New Mexico: Carlsbad Caverns pairs with Guadalupe Mountains National Park across the Texas line.
- Kentucky: Mammoth Cave is about 1.5 hours from Nashville and Louisville.
- Virginia: Luray Caverns is a short drive from Shenandoah National Park’s Skyline Drive.
- Nevada: Great Basin National Park adds dark skies and bristlecone pines to a Lehman Caves tour.
Bottom line
For scale, go to Carlsbad Caverns; for variety of tours, Mammoth Cave; for unusual formations, Wind Cave and Jewel Cave. Book national park tours on Recreation.gov as early as the window allows, pack a light jacket for 49–56°F air, and choose tours by stair count and length.
FAQ
Do you need a reservation for Carlsbad Caverns?
Yes. As of November 2026, the park requires a $1 timed-entry reservation for Carlsbad Cavern, plus a $15 entrance fee for visitors age 16 and older.
Which is the longest cave in the US?
Mammoth Cave in Kentucky, with more than 400 miles of surveyed passages, is the longest known cave system in the world.
Are Wind Cave and Jewel Cave free?
Both have no entrance fee, but you need a paid tour ticket to go inside either cave.
What should you wear on a cave tour?
Wear a light jacket or long sleeves and closed shoes with good grip. Leave clothing and gear that have been in other caves at home to help prevent the spread of white-nose syndrome.
