The Lütchine River is located in the Bernese Oberland region of Switzerland. It begins where its two tributaries join and flow eight miles to Lake Brienz in Bönigen. Daytime in the winter, and interesting phenomenon can be observed. The west facing side of the river is dark, shaded and cold, while the east facing side is bright, sunny and light. A story told tells of a friendly banter between the two sides. Those on the east said their neighbors were so dirty it turned the river black, while those on the opposite side said those on the east never bathed, which kept their side perfectly white.