The Katastrophenbucht (Disaster Bay) is a bay on the western shore of Lake Zug, named for the catastrophic landslide of 1435 that swallowed part of the medieval town and killed dozens of residents. The geography of the bay — its irregular shape and shallow, uneven bottom — is a direct legacy of that event.
Today it is a quiet stretch of lakeshore near the city centre, with a small beach area and a path that runs along the waterfront. There is no permanent monument or museum on site, but the information panels along the lakeside walk explain the history. The bay is worth a brief stop for anyone interested in the less-documented history of Lake Zug's shoreline and the geological instability that still shapes it.