Hiked into a 100 year old abandoned train tunnel in Clinton, MA this morning. The 1,100-foot-length tunnel was surprisingly dark once you got a ways into it. Even my flashlight app did little to dispel the dark. Add that to the constantly dripping water from the roughly carved tunnel ceiling and my overdeveloped fear of rats, which I was sure I’d run into at any moment and it made for a creepy little hike.