Is it good to go in the evening? Me and a group of friends plan on going and getting there around 7. We plan to hopefully be done before sunset, but if not, will it be safe if we have flashlights in case it gets dark?

I would say yes if you stay on the trail however we did see many signs of people going off trail probably after hours and doing random things like drinking, sleeping so have caution on wandering after dark because there is many places to hide within the trees and brush.

Agree with previous answers .

You will be okay there are little trails here and there but pull up google maps or mapquest you will see them all I usually go around 10 pm and no body is there its nice amd quiet