The 2023 Membership survey is now closed! We received a ton of feedback from members and want to thank everyone for taking the time to fill out the survey.
With over 8,000 Members the NSS is the largest caving focused membership organization in the world. Find out why you belong.
Donations to the NSS help support programs advancing cave science, preservation, exploration, and education. Find out how you can help.
The heart and soul of the NSS is our volunteers. Find out how you can get involved and help promote caving science, exploration and preservation.