Characters have been trapped in one location for months or even years and look clean and healthy, are shaved, have good haircuts ...
Mina leaves Galway towards Belfast, which is roughly 350 Km. At some point while she is driving, the GPS says "Proceed on this road for 106 Km to reach your destination.". This would put her somewhere in the middle or northeast of Ireland. So she would be nowhere close to the haunted forest which, as stated in the first scene, is located on the West of Ireland.