Rainy wet day in the Adirondacks, we are herding 60 some odd high school senior girls from New York City down a slow moving section of the Hudson River. They are having a lifetime adventure and loving every minute of it! I am the sweep boat, making sure everyone is accounted for and goes where they are supposed to go. My long green kayak is sitting on a rock bar that juts way out on the inside of a meandering curve in the river. I had to run across the bar to the other side of an island to help a couple of canoes get unstuck and back on course. Walking back to my own boat on the ankle to knee deep rushing water I start noticing the cobbles I am traversing. Wow! So many colors, shapes, sizes, and crystalline structures! I start picking some up for a better look, and get totally absorbed in the amazing variety of rocks surrounding me. A few minutes later, back at my boat, I drop several large heavy specimens into a cargo compartment and hope they don’t shift while I’m paddling. Grey and white marble with green streaks corners smoothed round, egg shaped granite with sparkling mica, quartz with large sharp crystals. I send encouraging words to the girls floating by as I climb back in my boat to help to next girls stuck on the cool rocks!