autumn cane grass lake nature pond shore spring trees water weather clean clear water fresh green natural River river riverside animal animals bird birds brown swans white winter bottom Mineral Mud pebble rock rocks sand stone stones Underground wet beach boy cold kid sea small young bank coast Denmark shadow stream sunlight tree wood flower flowers marigolds marsh plant plants yellow bavaria cottage forest fresh green germany landscape stilts ash boiling danger Dead trees gray hot springs mountains orange yellowstone blue boats bridge spring day sunshine natural oasis pool springs wade waterfall