Definitely not prepared. I saw them in shorts and tee shirts being pulled out of the canyon yesterday morning. It is November and it does get cold at night, it was very cold when I walked out a 8 AM to take out the trash...I'm at 1,620'.
The report link provided by Ken said they were in a group of 30 people. Let's see 15 people left without the group. They started a 9:30 AM with sunset at ~4:50 PM. Something does not add up here.
I never go out with more than a dozen people and If I were doing something like this it would closer to half this.
