One of the creepiest experiences I've had outdoors was while canoeing down a small river. My friend and I came upon this very low duck-your-head type of bridge. Every inch of the underside of this bridge was
covered with the BIGGEST, hairiest, black spiders I've ever seen. And they were about 2 inches from me head.
Yes, I did the "Creepy dance" once we were out the other side. LOL