From Caernarfon
Take the A487 from Caernarfon. Stay on this road carrying straight on through three small roundabouts.

At the fourth and big roundabout the road divides and the A487 turns off to the left to Porth Madoc. Keep straight on (A499 to Pwllheli) After running beside a long high stone wall on the left follow the sign to the right to Caernarfon Airport and Dinas Dinlle.

At the small seaside village of Dinas Dinlle follow the road round a sharp right hand bend past the shops and along the coast road until you come to another very sharp right hand bend. At this point turn left and immediately right to a metal gate marked 'private'. Please close this gate behind you and carry on for approximately one and a half miles to the Fort. Park in either the inside or outside car park.