Travelling from Derry (and Belfast) the quickest route is to cross the FoyleBridge then take the A2 towards Moville, turning off for Carndonagh at Quigley's Point/Carrowkeel. Ballyliffin is 6 miles (10 km) beyond Carndonagh.
From Letterkenny or Rosapenna take the R238 through Buncrana. At CockhillChurch (outside Buncrana) take a left over the bridge for Clonmany. At ?The North Pole? Pub 5 miles after Buncrana keep left for Clonmany/Ballyliffin. Entering Clonmany (at the Centra Shop), make a right turn for Ballyliffin. Polan Bay is located about 2 mile from Clonmany