The Kandel is one of the highest points of the Black Forest and thus gives you a stupendous view of the surrounding darkly wooded ranges of the Black Forest, but sitting at the western edge of the latter, also across the Rhine Valley far below and to the Vosges mountain range across the Rhine and the national border in France. It's really only worth going up there on a clear sunny day - if there's no view, it's not worth the trouble. The best days to choose for an excursion up there are totally clear late summer/fall days and you might be lucky enough to see all the way to the snow-capped peaks of the Swiss Alps.