When I used to climb a lot, those giant millipedes were all over the rock. You would be 100 feet up off the deck going to make a sketchy move and wriggle, wriggle, one would crawl out of the rocks right in your face. Not much you could do about it. Focus past the bugs!

One time we saw a rather large snake climbing vertically right up the face about 20 feet off the ground. Now that would have given me a heart attack.