Buy Carrick-on-Shannon vouchers for deals on River Shannon Cruise. Relax on a 75-minute cruise on the River Shannon and Lake Lough Ree. Go as a pair, or upgrade for a family ticket for up to four kids! Enjoy panoramic views from inside a fully-heated vessel. Great date idea or family day out! Sailing seven days a week. Boarding at Quay Beside Athlone Castle.