Get Lost

The British Mountaineering Council writes about the increasing number of mountain hikers who get lost in the mountains by relying solely on their smartphones' GPS.
I like this quote:
"So basically any time you might actually have to rely on it, they have a disclaimer for it....Of course, life is never that simple. Because while at least two police forces in the last month have warned about the risks of using a smartphone, plenty of guides, instructors and ordinary climbers and hill walkers use one routinely."