bank banks canal channel fall falls grass lawns river shore stone stones water waterfall waterfalls yard island sand sandy shores trees vistula wisla lake nature plants wet wood Jetty landings moorings river bank still summer autumn bright colour colourful flowers landscape red boat grassland pilica plains spala spała tree wide banks of the river Rhein castle germany ruin vineyard brown green Oak Trees pine trees reflections River Banks rocks rust cross crossing group Lithuania tourists trakai troki walk wooden