Lake with nature and forest and a weeping willow in the foreground by the water in the evening in Cologne at the Baggerloch in Dünnwald

lake nature forest weeping willow foreground water evening cologne baggerloch dunnwald serene tranquil scenic beauty picturesque outdoors landscape reflection calm peaceful sunset twilight nature reserve wildlife birdwatching hiking biking flora fauna biodiversity greenery relaxation escape outdoor activities natural beauty park recreation idyllic pristine wildlife habitat ecological sustainability environmental nature conservation recreational area waters edge waterfront dusky natures tranquility