Clarksville cave is a popular horizontal cave in Albany County, NY. With about 4800 feet of passage and three entrances, Clarksville is surely the best-known and most-visited wild cave in the Northeast.

 The cave is open from 7AM to 11PM to the general public. The preserve includes a changing area and informational kiosk.

Information about safe caving and guidlines for the preserve are available here as well as at the preserve.

Institutional users such as summer camps, church groups, and school groups are asked to contact the NCC special use coordinators to schedule trips into the cave.

• Minimum group size is 3; maximum group size is 15.
• All persons entering the cave must have at least the following minimum equipment: helmet with a chin strap; three (3) sources of light, one of which must be helmet mounted; and knee pads.
• All cavers are expected to abide by the normally accepted rules of safe and conservation minded caving as outlined by the National Speleological Society, 2813 Cave Avenue, Huntsville, Alabama 35810-4431.
• Clarksville Cave must be treated as a unique natural resource, and nothing should be taken out of the cave except trash.
• All work projects must be clearly defined and authorized beforehand.
• Each group is expected to clean up any trash in the cave or on the property.

• Institutional groups: Insurance or certificate thereof may be required for private groups such as schools, camps, and scouts. A special parental permission form must be signed for each and every minor. Groups such as the Boy Scouts will be required to show proof that they are complying with their own rules regarding caving.

If you have questions about this preserve, please contact the Clarksville managers at clarksville@necaveconservancy.org