Cosmos Mystery Area, Rapid City

3.9
Explore the mysteries of Cosmos Mystery Area, where water flows uphill and you can sit on a wall. The area was discovered by chance in 1952, and has drawn curious visitors ever since. On the tour, you can participate in the demonstrations of seemingly reversed gravity. The illusions created by the natural phenomenon known as gravity hill are most dramatic inside the on-site cabin. Note that the tour requires navigating forest paths that are not wheelchair or stroller accessible. Bring comfortable shoes for the walk. Plan to visit Cosmos Mystery Area and other customer-reviewed, writer-recommended Rapid City attractions using our Rapid City holiday planner.
Create an itinerary including Cosmos Mystery Area
map
Cosmos Mystery Area Reviews
Rate this attraction
TripAdvisor Traveler Rating
TripAdvisor Traveler Rating 4.0
809 reviews
Google
4.4
TripAdvisor
  • if your looking for something on the illusion side of a trip this is the place. Offers a fun experience for the whole family to enjoy.  more »
  • I have visited Cosmos several times over the years, my first time about 60 years ago. Since then I have taken both my kids and grandkids to the site. It's always been a "Mystery" to me. But one that e...  more »
  • This is a neat side trip. I remember going here when I was in the 5th grade, and it was just nuts! When we visited the area again recently, I had to see if it was still as amazing as it was when I was...  more »
Google
  • The real mystery is why do I keep getting suckered into coming to this mystery area ?!?! 🤔🤔🤔 Silly family fun. A little pricey for how long it lasts. Often regarded as the 10th wonder of the world. 🌏🌏 My folks brought me here. I brought my kids here and it will continue for generations and so on. Great, generations of suckers.🍭🍭🍭 Good luck trying to figure out how the Cosmos works. I think aliens are behind this crazy roadside attraction.👽👽👽
  • Cosmo's Mystery Area will keep you questioning Newton's laws for years after your visit! Experience an almost "unworldly" take on gravity, balance, and physics while your tour guide shocks you by making water run uphill. Skeptics can keep busy examining the engineering of the structures involved, but, believe it or not, everyone will have a nice time when they visit Cosmo's. Your kids will be in awe, and you'll all have a head scratching memory that will last you a lifetime.
  • Charles was a fun guide. We really liked him, great with the kids, and his name recall was impressive. Been traveling the area and looking for geodes to crack for my rock loving kids. Saw all sorts of set ups for different prices, including one that was simply "put it in a bag and hit with a hammer." I'm glad we stopped for this, not only can you "search" for one in the sand, they were some of the biggest I saw around for a decent price, and you get to work a hydraulic hammer to make a nice break without risking your kid busting it to pieces. Plus the guide, Charles, pointed out the cool features of each kids' geode. One got snowball features, one had several geodes grown together, and another had a really nice big one with deep caverns. I'd recommend going here for the geode cracking if you have rock loving children.
  • this place was totally awesome!! fun for the whole family! it's mind blowing and Sage our tour guide was fantastic! only gave 4 stars because the one downfall was with it being a tour we didn't get much time to try the different things in the cabin. We moved on to next room pretty quick but other then that it was a great time!
  • Loved in South Dakota for over 40 years & had never stopped at the COSMOS...So glad we did on this last Black Hills Trip...This place is a GEM and a fantastic family experience...especially for those interested in science/physics...FUN, FUN, FUN!! Loved the crowd interaction to demonstrate all the activities. Can't wait to take my Grandaughter here when she's about 5 or older.
Places to stay near Cosmos Mystery Area

Plan your trip to Rapid City

  • Get a personalized plan

    A complete day-by-day itinerary
    based on your preferences
  • Customize it

    Refine your plan. We'll find the
    best routes and schedules
  • Book it

    Choose from the best hotels
    and activities. Up to 50% off
  • Manage it

    Everything in one place.
    Everyone on the same page.

Plans to Cosmos Mystery Area by other users

28 days in United States SEE PLAN June, kids, culture, relaxing, beaches, historic sites, wildlife, popular & hidden gems PREFERENCES: June, kids, culture, relaxing, beaches, historic sites, wildlife ATTRACTION STYLE: Popular & hidden gems PACE: Medium 14 days in South Dakota BY A USER FROM AUSTRALIA August, popular PREFERENCES: August ATTRACTION STYLE: Popular PACE: Medium 34 days in South Dakota BY A USER FROM UNITED STATES July, outdoors, relaxing, wildlife, popular PREFERENCES: July, outdoors, relaxing, wildlife ATTRACTION STYLE: Popular PACE: Medium 12 days in United States BY A USER FROM UNITED STATES July, teens, kids, popular PREFERENCES: July, teens, kids ATTRACTION STYLE: Popular PACE: Medium 8 days in Rapid City BY A USER FROM UNITED STATES July, kids, popular PREFERENCES: July, kids ATTRACTION STYLE: Popular PACE: Medium 8 days in United States BY A USER FROM UNITED STATES June, kids, popular PREFERENCES: June, kids ATTRACTION STYLE: Popular PACE: Medium 10 days in Custer & Rapid City BY A USER FROM UNITED STATES June, kids, popular PREFERENCES: June, kids ATTRACTION STYLE: Popular PACE: Medium 3 days in Rapid City BY A USER FROM UNITED STATES July, teens, kids, culture, outdoors, historic sites, museums, wildlife, popular PREFERENCES: July, teens, kids, culture, outdoors, historic sites, museums, wildlife ATTRACTION STYLE: Popular PACE: Medium 3 days in Rapid City BY A USER FROM UNITED STATES May, teens, kids, popular PREFERENCES: May, teens, kids ATTRACTION STYLE: Popular PACE: Medium 7 days in United States BY A USER FROM UNITED STATES June, culture, outdoors, historic sites, museums, wildlife, popular & hidden gems PREFERENCES: June, culture, outdoors, historic sites, museums, wildlife ATTRACTION STYLE: Popular & hidden gems PACE: Medium 4 days in Rapid City BY A USER FROM UNITED STATES August, popular PREFERENCES: August ATTRACTION STYLE: Popular PACE: Medium 21 days in Rapid City BY A USER FROM UNITED STATES July, popular PREFERENCES: July ATTRACTION STYLE: Popular PACE: Medium
View more plans