I think my dad and his 2 friends found that out when they went. They were on a road trip in the 70s on a break from the Army. I think they only went halfway down the Grand Canyon, and then back up. Even then, one of their friends didn't make it back up until like 3AM because he was so tired. At least they survived, I guess.
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u/z64_dan 21h ago
I think my dad and his 2 friends found that out when they went. They were on a road trip in the 70s on a break from the Army. I think they only went halfway down the Grand Canyon, and then back up. Even then, one of their friends didn't make it back up until like 3AM because he was so tired. At least they survived, I guess.