A natural formation in the woods of Muckross easily found along Arthur Youngs Walk. A short detour from the paved road will bring you to the entrance (or exit :-) depending on your approach).
Cache co-ords are at the entrance into the cave, you'll need to push on a litttle further.
Five paces in you'll see some unusual markings on the left. Although pre-dated by the paintings in Lascaux by some 17,500 years, they remain a significant example of post-modern Killarney cave art.
After the initial 'chamber' you'll need to stoop down to continue through. It's around here the cache is placed.
Make sure to bring a torch. Please hide again well afterwards.
Hidden under some rocks, please do hide well - been muggled a few times.