Dad and I hit the Arethusa Falls / Frankenstein Cliff loop the day before Lori was due to arrive with the kids. The falls were beautiful, but crowded. But we saw only three other groups on the Frankenstein Cliff, and they were all traveling in the other direction. The cliff itself commanded a fantastic view - although truth be told, my vertigo had me standing (alright, sitting) about forty feet back from the edge. On the trail down from the cliff, you pass under a bridge for the railroad that passes through this area. I've always wondered what it would be like to be there as a train passed by. Somehow, we timed it perfectly. We got their, climbed up to the bridge to check it out, and heard the train blow it's whistle not 30 seconds later. Amazing!