Suduroy, Faroe Islands
Just before the gloom is the top of Tempilskletur at 493 meters. I had to navigate the whole way via nose, gps, less than common sense and a dose of luck. Visibility was about 30 meters or 100 feet. Hard to see the cairns until I trip over them. The really important thing to do in situations like this is to capture a reverse heading with the gps in the event I need to fall back to compass. And, get a bearing on the wind direction as it stays remarkably constant.