The park contains the site of a former hydroelectric scheme that influenced the current configuration of the two lakes.
Glanteenassig is home to a protected population of the Kerry slug, a rare mollusk species native to the region.
The landscape was significantly shaped by glacial erosion, resulting in the deep U-shaped valley characteristics seen today.
It is one of the largest forest parks in County Kerry, spanning a rugged, mountainous elevation gradient.
Glanteenassig Forest Park is a 450-hectare woodland and mountain sanctuary situated in the Slieve Mish Mountains on the Dingle Peninsula. The site features two primary lakes, Lough Slat and Lough Caum, surrounded by steep cliffs and expansive conifer plantations. A significant boardwalk trail encircles the upper lake, providing accessible passage over bogland and wetland habitats. The area serves as a remnant of ancient woodland with diverse flora including rhododendrons and native Irish trees. Elevated viewpoints offer panoramic vistas over the Brandon Bay and the Atlantic coastline. The park includes a marked network of trails catering to both casual walkers and experienced hikers. It is managed by Coillte and functions as an important site for local biodiversity and conservation efforts.
The wooden boardwalk overlooking Lough Slat, providing a reflection of the surrounding cliffs.
Bring waterproof footwear as the boardwalks and surrounding paths can be slippery and wet.
Check weather reports for the Slieve Mish range, as low cloud cover often obscures the higher mountain views.
Carry windproof outer layers, as conditions on the valley floor can change rapidly compared to the lower coastal regions.
Do not attempt the higher mountain ridge trails without proper navigation equipment, as path visibility can disappear in mist.
Leave no trace; stick to marked trails to protect the fragile bogland ecosystems.