What was supposed to be a bonding hike between a father and son quickly turned into a terrifying ordeal. Fourteen-year-old ...

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It is unclear whether the father and son reached the summit, but any travelers reaching altitudes of 8,000 feet — sometimes lower — are susceptible to altitude sickness and symptoms.

Zane Wach, 14, left, began hallucinating before stepping off a 120-foot cliff while hiking with his father, seen right.

Ryan Wach said his son Zane Wach, 14, experienced altitude sickness while climbing California's Mount Whitney and seemed to ...

A California teen who walked off a cliff while experiencing altitude-related hallucinations on the tallest mountain in the lower 48 states has begun a slow recovery but remains in a ...

The father of Zane Wach, 14, says hallucinations prompted his son to question whether he was dreaming before he fell from a ...