Tourists followed gps instructions ...and found themselves on a cliff

Tourists followed GPS instructions and found themselves on a cliff
(Place: Kalavryta , Country:Greece)

German tourists were found over a cliff in Kalavryta.
They followed the directions of the GPS and ended up in a dangerous and impassable passage.
They followed their gps pointing the way ...to a cliff via a dangerous and impassable passage , maybe some wild goats could climb it ...

Things went south when they realised there's no going back , since no return was possible :-(
Unfortunately their vehicle was found suspended over a ravine.
They were lucky and the vehicle didn't fall down and just stood on the edge of the cliff hanging there...
Some men came to help them and tied the vehicle so it doesn't fall down , but pulling it was a pretty difficult task.