Lower Lough Erne is Northern Ireland's premier limestone trout lake, a vast and windswept water stretching approximately 30 miles through County Fermanagh that forms the northern part of the River Erne system. This designated game fishery is renowned for producing some of the finest wild brown trout fishing in Europe, with a surface area of 109.5 square kilometers and a maximum depth of 12 meters. The lake's limestone geology creates alkaline, nutrient-rich water that supports extraordinary insect life, including a famous mayfly hatch. The expansive, island-studded water features numerous bays and rocky shores, creating huge shallow water areas perfect for fishing. While primarily a game fishery, the lough also supports significant coarse fish populations, offering a diverse angling experience across its scenic, rolling landscape.