On the south-east coast is the Clam-shell or Scallop Cave.
Reichenberg is first mentioned in a document of 1348, and from 1622 to 1634 was among the possessions of the great Wallenstein, since whose death it has belonged to the Gallas and Clam Gallas families, though their jurisdiction over the town has long ceased.
Its principal industry is the canning of sardines; there are also clam canneries.
As the army of the Elbe was numerically inferior to Clam-Gallas and the Saxons, the reserve corps was at once despatched to reinforce it, and the Guard was sent to the crown prince.
The amount and value of other catches in 1902 were as follows: whiting, 606,300 lb ($30,118); sea bass, 7 0 9,5 5 lb ($27,364); shad, 434,133 lb ($20,782); clam, 28,133 bush.