The main body of the island, known as Muttland, is surrounded by several peninsulas. To the north lie the peninsulas of Wittow and Jasmund, connected to each other by the Schaabe sandbar and to Muttland by the Schmale Heide, an embankment at Lietzow and the Wittow Ferry. The northern peninsulas are separated from Muttland by several lagoons or bodden, the largest of which are the Gro�er Jasmunder Bodden and Kleiner Jasmunder Bodden. Major peninsulas in the south are Zudar and M�nchgut which both face the Bay of Greifswald.
R�gen has a total area of 926.4 km, or 974 km if the adjacent small islands are included. The maximum diameter is 51.4 km from north to south, and 42.8 km from east to west. Of an overall 574 km-long coastline, 56 km are sandy Baltic Sea beaches, and 2.8 km sandy bodden beaches. The highest elevations are on the Jasmund peninsula: Piekberg (161 m) and K�nigsstuhl (117 m).
The northern part of the Bay of Greifswald, the R�gischer Bodden, is a large bay in the south of R�gen island, with the island of Vilm lying just offshore. At the western end of the bay, the peninsula of Zudar runs out to the southernmost point of R�gen (Palmer Ort), at the eastern end the highly indented peninsula of M�nchgut projects into the sea. This peninsula ends in the east at the cape of Nordperd near G�hren and in the south at the cape of S�dperd by Thiessow. In the west of the peninsula of M�nchgut a narrow, 5-km-long bar, the Reddevitz H�ft, separates the two bays of Having and Hagensche Wiek
