The Shannon River is the longest river in Ireland, stretching approximately 360 kilometers (224 miles). It flows from Lough Allen in the north to Shannon Estuary in the south, passing through several towns, including Athlone and Limerick. The river is an important waterway for transportation and recreation. The Shannon River is known for its scenic beauty and diverse ecosystems. It supports various wildlife, including fish species like salmon and pike. The river also plays a significant role in Irish culture and history, with numerous historical sites located along its banks, such as castles and ancient ruins.