The River Slaney is a storied Irish waterway stretching 117 kilometres from its source high in the Wicklow Mountains on Lugnaquilla Mountain — the highest peak in Leinster — down through the counties of Wicklow, Carlow, and Wexford before emptying into the sea at Wexford Harbour. Rising within the Wicklow Mountains Special Area of Conservation (SAC), the river flows southward through the towns of Baltinglass, Tullow, Bunclody, and Enniscorthy, passing through a diverse range of habitats including alluvial wet woodland, tidal mudflats, and estuaries. The Slaney River Valley SAC is designated for numerous protected species including Atlantic salmon, sea lamprey, brook lamprey, river lamprey, freshwater pearl mussel, twaite shad, and otter — a testament to the ecological richness of this catchment. Historically one of Ireland's great spring salmon rivers, the Slaney remains a compelling destination for game anglers seeking wild brown trout, sea trout, and salmon in a scenic and ecologically significant landscape.