A while back a visitor to the site told us about a sinkhole in Springfield with a cave at the bottom that was deep enough you'd need a rope to get down it. We were skeptical, but Raven, Sewer Shinobi, and myself went to check it out and found that the story was completely true. Luckily, I had thought to bring some rappelling gear just in case and took a quick trip down the sinkhole. Although the cave only went back about ten feet and was full of discarded trash, I did get to enjoy watching Raven and Sewer Shinobi haul me back up.