the “jungferweiher” near ulmen in the eifel

adventure austria blue boardwalk climbing cochem crater eifel eruption europe forest gangplank germany green hiking hill hillscape jungferweiher lake landscape low mountain range maar mountain natural nature outdoor panorama path pfaffikon place reflection rhineland-palatinate season sky spring summer swimming tourism travel tree ulmen ulmener bach volcanic volcano vulkaneifel water wooden wooden trail zell