Follow the path through the wood above the river into the open until you come to a park bench. Then go down a long flight of steps. I let you figure out the rest.
Please make sure to hide the PET cache by putting it back exactly where you found it. This is very important as many muggles follow the path to GZ wondering where it leads to and having a look around as to find the reason for the path.
The steps lead down to the (disused) well house, a slightly run-down simple conrete shell that now has a grille to cover the wells, but there is a hole in it so you can have a look. Go down there and have a sniff... The twin wells were two trickles of iron and sulphur rich waters. Unfortunately, only the sulphur one is still flowing, the iron one to the left of it has dried up.
History of this place: Lisdoonvarna is set within steep shale hills, interspersed with deep ravines carved out by rivers. Due to the geological composition of the area, there are several mineral-rich springs with health-giving sulphur and iron waters.
Lisdoonvarna has developed thanks to and around these wells in the 19th century. The Gowlaun springs were discovered in the early 1700s, and analysed for the first time about 300 years ago, in 1713. The waters turned out to be rich in iron and sulphur. The chalybeate and magnesium Twin Wells on the banks of the Aille River turned out to be more beneficial than similar wells of renown in the UK and mainland Europe! The images show the Twin Wells of Lisdoonvarna located on the banks of the River Aille.
Lisdoonvarna is the only spa town in Ireland and the beneficial effects of its water were first noted by writers as early as 1740. In 1837 it was claimed that the iron-rich water in one of the springs was “peculiarly efficacious in hepatitis, consumption, scorbutic and bilious affections, and rheumatism.” These iron and sulphur waters became more accessible as baths, hotels and lodging houses were developed. By 1876 a handbook to the town remarked that “almost every house in Lisdoonvarna not a Hotel is a Lodging House.”
Interestingly, the annual September-long matchmaking festival seems to have originated from the then new spa culture. After the harvest, the bachelor farmers would go to the spa wells to treat themselves having eaten all the fatty foods over the year and having developped rheumatism from the dampness and cold of the climate. As we know from Jane Austen and her tales of love, it was not only the healthy waters that kept people coming to the wells - a great incentive was to eye the opposite sex and possibly find a match. So there you have the connection between the spa culture and the matchmaking festival!