The main river in Ireland is the River Shannon, 386 km (240 mi), the longest river in either Ireland or Great Britain, which separates the boggy midlands of Ireland from the West of Ireland. The river develops into three lakes along its course, Lough Allen, Lough Ree, and Lough Derg. Of these, Lough Derg is the largest.
Irish tea just might be the national beverage of Ireland. Believe it or not, the Irish drink more tea per capita than any other country in the world. There are over 4 million people in Ireland and 3 million are tea drinkers. The average Irishman or Irishwoman drinks about 4 to 6 cups a day.
Northern Ireland and the Republic of Ireland have different currencies.
In the Republic of Ireland the currency used is the Euro and in Northern Ireland the currency used is the Pound Sterling.