If the hike requires extra equipment built into the trail to make it possible, there's a good chance it's a fairly dangerous venture. The ladders and cables along the Half Dome hike prove this ...

They wrote, "This trail is dangerous and should be closed ... Don't go above Vernal Falls on this trail if you value your life." Half Dome is a seasonal trail that is 14 to 16 miles long.

The trail then ventures up the sub dome ... of time to prepare for Half Dome's tough elevation gains. Half Dome becomes incredibly dangerous to climb when rain, and especially thunderstorms ...

Though the rock formation, known as Half Dome, has become one of Yosemite's most iconic symbols, it's also one of the most dangerous hikes ... also mean that the trail wouldn't become bottle ...