Falkland Is. is 1,739 times larger than Phoenix Park.
Area: 12,173 km2 World Factbook
Population: 2,840 (July 2012) World Factbook
The Falkland Islands are an archipelago in the South Atlantic Ocean on the Patagonian Shelf. The principal islands are about 300 miles east of the southern Patagonian coast, at a latitude of about 52°S. Wikipedia
Area: 7 km2 calculated
Phoenix Park is an urban park in Dublin, Ireland, lying 2–4 km west of the city centre, north of the River Liffey. Its 11 km perimeter wall encloses 707 hectares, one of the largest walled city parks in Europe. Wikipedia