I can't find the second sweet spot to emerge from invisibility. Everyone saying it is easy, you are not being in the least bit helpful. Please give locations or record it for youtube.

Sweet Spot #1: Past first boss, the just on the first line dividing the cavern from the next room. Boss won't aggro, neither will the mobs just in front.
Sweet Spot #2: ???

Make sure you equip faster run/walk boots or you won't make it, otherwise be naked.