The Cave Guide

Wonderland Cave

Nemo, SD
47°F
inside, all year
130
steps on the tour
45–60 min
on the main tour
$22
adult ticket

A seasonal show cave near Nemo in the Black Hills, open in summer, staying 47°F inside.

The story

The Lakota people, who inhabited the region for thousands of years, knew of Wonderland Cave's existence before exploration started in 1929. The cave's formations began forming 60 million years ago under what used to be an inland sea. The site now operates as a guided show cave with a gift shop. The text does not state when it opened to visitors or other notable events.

Found
1929 (exploration started)

History source: wonderlandcavesouthdakota.com.

What you'll see

  • Boxwork
  • Stalactites
  • Stalagmites
  • Columns
  • Several varieties of crystals
  • Helictites

Tickets and timing

Adults
Adults $22
Kids
Children 6-12 $10; Children 5 & under Free
How long it takes
About 45–60 minutes (visitor reports)
Hours
Summer season, opening May 1.
Booking
Reservations are not required; call 605-578-1728 if you have questions.

Getting around underground

The walk
Around 130–140 steps (visitor reports).

Dogs, weather and what to wear

Temperature
47°F / 8°C — bring a light jacket

Good to know

Best time to go
Come at a non-busy time for a more private experience; closed on Mondays.
On site
gift shop

Getting there

Rapid City

12634 Alpine Rd, Nemo, SD 57759

Directions in Google Maps

Distances are straight-line from each city center.

Questions people ask

How long does a visit to Wonderland Cave take?

About 45–60 minutes (visitor reports)

How cold is it inside Wonderland Cave?

47°F / 8°C — bring a light jacket.

Do you need to book Wonderland Cave in advance?

Reservations are not required; call 605-578-1728 if you have questions.

When was Wonderland Cave discovered?

1929 (exploration started), according to the cave's own history.

Where is Wonderland Cave?

12634 Alpine Rd, Nemo, SD 57759

Checked on 2026-10-22 against wonderlandcavesouthdakota.com. Prices and hours change, so confirm on the official site before you drive out.

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