The Elbe–Lübeck Canal joins the Trave from the south shortly before the river reaches Lübeck. In medieval Lübeck the river was transformed according to the needs of shipping and the town's defense, making the Old Town into an island. South of the Lübeck Cathedral the channel forks in several directions, with the original channel known as the Town Trave. The Lübeck town moat branches off to the west, and the Canal Trave separates eastward from the Town Trave's course and runs in the former bed of the Wakenitz to the northeast side of the Old Town. The modern Wakenitz joins the Canal Trave from the east, and the three channels recombine at the north end of the Old Town island.[4]
In the early Middle Ages, the upper reaches of the Trave (together with the Schwentine) formed part of the Limes Saxoniae and the western boundary of Wagria.[6] In the Old Town of Lübeck the river forms part of the medieval town fortifications. The lower reaches today form the border between Schleswig-Holstein and Mecklenburg-Vorpommern.
Geology
The course of the lower Trave arose in the last ice age (the Weichselian glaciation), when glacier flows carved deep fjords into what is now the Baltic Sea coast.[7] Since the end of the ice age the groove communicates with the sea; its lower end is called the Traveförde (Trave Fjord).
Recreation and conservation
The area surrounding the course of the Trave is designated as a preserved "flora and fauna habitat" by the European UnionHabitats Directive. The river runs through or beside a series of nature preserves and undeveloped lands, and its basin is home to a variety of rare and endangered animal species. The area is a popular destination for hiking, cycling, canoeing and fishing. The German Friends of Nature organization declared the Trave its German Riverscape of the Year for 2016/17.[8][9]