Mentioned by Passports and Adventures
A Complete Guide to Visiting Dublin With Kids
"The Phoenix Park, located on the northside of the city, is the largest public park in Ireland and it’s main entrance is located near Heuston Train Station, just 2km from the very centre of the city. With 707 hectares (1750 acres) of parkland enclosed in its 11km perimeter wall, it is one of the largest enclosed recreational spaces in Europe. It is home to the residence of the President of Ireland, Aras an Uachrarain, houses the official residence of the United States Ambassador to Ireland, is where the Papal Cross is located and is also home to Dublin Zoo (see next section)."