In reply to ebdon:
You used to be able to overnight nearby by Llynnoedd Cregennan, a very picturesque and quiet little spot marred only by the midges in the absence of a breeze. The NT have now put up No Overnight Parking signs as a direct result of more and more T5 type camper vans and other motor homes accessing the narrow stone-walled lane above Dolgellau which, seemingly, has been causing chaos on occasion as a few such vehicles are driven by individuals who are either unable to reverse or are selfishly unwilling to give way when confronted by another vehicle. I have, unfortunately, met both types on this road. The sparsity of passing places doesn't help either.
A reminder, perhaps, that the current growth of "wild" camping/overnighting in vans can have unintended consequences and an undesirable effect on other visitors and locals?