Athlone, Ireland. Athlone is a town located in County Westmeath, Ireland, situated on the banks of the River Shannon. Visit Athlone Castle, a 12th-century fortress that now houses a museum showcasing the town's history. Take a leisurely cruise on the River Shannon or enjoy a walk along the Athlone Marina. Explore the streets of the town center and discover the lively pubs, restaurants, and shops. Visit nearby attractions like Clonmacnoise, an ancient monastic site, and the Belvedere House and Gardens, offering scenic walks and a Victorian walled garden. Athlone is a charming town with a picturesque riverside setting.