2026 NSS Convention
Hundreds of Caves, Hundreds of Miles
Corydon, IN - July 6 - July 10, 2026
Know Before You Go
The Harrison County Fairgrounds is located within convenient walking distance to downtown Corydon. This campground site consists of 25 acres of open fields and shaded areas along a woodline. The Fairgrounds are bordered by flowing streams along the west and north sides, the west side emerging from one of the Binkley Cave System entrances, the north is Little Indian Creek, which is suitable for paddling. There will be designated quiet and noisy zones, both of which have some limited options for shaded camp sites. In addition, there will be opportunities to camp under-roof in several open-sided buildings, available on a first-come, first-serve basis. The Fairgrounds will continue to host some activities throughout the week (including horse boarding on-site), so several buildings and areas will be clearly marked off-limits to cavers.
Temperatures in southern Indiana in July are typically hot and humid, with average daily highs around 85°F and nightly lows around 66°F. It is not uncommon for pop-up rain showers to occur so be sure to monitor the weather, which can seriously impact many local caves due to flooding. Cave temperatures in this area average around 54°F.
General Information:
Full restroom facilities, including hot/cold showers and flush toilets, are available at both the Fairgrounds and the Corydon Central High School campus (located in the main building and athletic annex). For added convenience, portable toilets and wash stations are positioned throughout the camping areas. These amenities are accessible to all registered attendees nearly 24/7.
Open fires at the Fairgrounds are not permitted. Despite the Fourth of July holiday, fireworks and/or explosive devices are also not allowed, due to the boarding facilities located at the Fairgrounds. No smoking under any of the roofed barns or buildings.
For the safety and comfort of all attendees, a strict 'no pets' policy is in effect. We welcome certified ADA service animals; however, please note that emotional support animals do not qualify under this policy.
Generators will not be allowed to operate between the hours of 8pm and 8am ET. Potable water will be available in specific locations around the Fairgrounds.
Camping/Parking/RV Info:
The Fairgrounds site camping/parking area is limited to standard length cars, vans, pick-up trucks and small camping trailers (see size minimum below).
- Small campers (trailers and pop-ups) are limited to a 14’ long fuselage/cabin length (not including the tongue).
- Anything 15’-21’ long —or otherwise deemed too large by staff—will be required to reserve a spot for their trailer/vehicle ahead of time in the RV-designated section of the Fairgrounds for an additional cost. Please note that no hookups for sewer, water, or electricity are available on-site. For RV camping information at the Fairgrounds, click HERE
- If full-service RV camping is needed (greater than 21’ long), there are nearby RV campgrounds within 20 minutes of Corydon that may be reserved. More Information: HERE
Convention day passes are available: HERE
View 2026 Convention Fairgrounds Map
Pre and Post Camping:
Due to contractual obligations, we will not be able to admit convention attendees to the Fairgrounds for camping before Saturday, July 4, 2026 at Noon EST.  Following the event, all attendees will need to be off-site by noon ET on Saturday, July 11, 2026. Fortunately, there are several fine camping and lodging options within an hour of Corydon. (LINK)
Pre and Post Convention camps and other fun activities are being offered thanks to several local grottos and organizations. More information will be forthcoming. You can find more information on these camps/activities HERE
Caving During Convention:
There are hundreds of caves within a 2-hour driving distance from the Convention site. If you are interested, please visit Cave Central at the Fairgrounds to consult with local experts and learn more.
Horizontal and vertical caving trips, plus guided hikes will be offered throughout the week. We will offer both led and self-guided options; please visit Cave Central for volunteer assistance with logistics and planning for your independent trips as there may be a limited number of permits available for certain caves and/or other access considerations.
In addition to caving, the area offers extensive opportunities to explore surface geology, including numerous lakes, rivers, and hiking trails. Notably, the nearby Yellow Birch Ravine Nature Preserve is home to Ravine Arch, the largest natural bridge in the state.
