There's a photo of me as a child where I'm sitting at the base of this waterfall, letting the frigid water soak me to the bone. It had been about 10 years since I returned to Arethusa Falls, the tallest waterfall in New Hampshire, and despite the changing of the leaves seen in this picture, it was nearly 85 degrees, and after a short and humid hike, the natural AC of the frigid falls was more than welcome.