2026 NSS Convention
Hundreds of Caves, Hundreds of Miles
Corydon, IN - July 6 - July 10, 2026
The National Speleological Society (NSS) will host the 83rd Annual Convention in the lush forests and rolling hills of Corydon, Indiana.
This scenic sinkhole plain region is home to hundreds of caves that can be visited within a two-hour drive of the site, including the world’s longest (Mammoth Cave) and two others among the top ten longest in the nation!
The caves of the area not only provide the thrill of adventure; but a journey through time, having served as shelters for Native Americans and hideouts during the Civil War. Prehistoric bones and antique relics can be found, along with some of the caving community’s greatest lore which originates from this area.
This blend of natural beauty and historical intrigue makes caving in the Ohio River Valley an unforgettable experience. We can’t wait to host you in July 2026!
Register for the 2026 NSS convention! Choose your registration options, extras, field trips, workshops, shirts, guidebooks, and more!
