Get Underground in South Dakota
Interested in caves near you? The NSS is a great way to explore and learn about caves in South Dakota. Attend a meeting at one of our local chapters, meet other cavers, get training, and see South Dakota caves. No experience necessary! We are a national organization dedicated to exploring, protecting, and studying caves.
About the National Speleological Society
The NSS is the largest caving-focused membership organization in the world. We exist to promote fellowship among cavers & protect, explore and study caves. With thousands of members worldwide, being a part of the NSS means being connected to cavers everywhere. There is no better way to get access to trips, training, and fellowship. But the NSS also offers the following benefits:
Get immediate digital access to over 80 years and 1,500+ issues of NSS publications, including the NSS News. For an additional $10/year, members can receive a printed copy of the News.
Get 45% or more off outdoor gear from major brands! Additionally, caving-focused vendors like Highline Rope, Inner Mountain Outfitters, and On Rope 1 all offer generous discounts to NSS members.
NSS Bookstore discounts
Discount on your first Convention
Connect with Cavers through the Membership Directory
Access to NSS Cave Preserves
Free Camping at HQ
Access to the NSS library