Since 2009, the Halligen have been declared a Unesco World Heritage Site and are part of the Nationalpark Schleswig-Holsteinisches Wattenmeer.At high tide the houses built on the Halligen are completely surrounded by water and seem to float in the middle of the മാരെ.എം. എ. with the arrival of the summer ചെറിയ കൃഷിയിടങ്ങളും മുന്നേറാൻ എല്ലാ their beauty. The houses are built on കൃത്രിമ ഭൂമി piles വിളിച്ചു warft, which keep the structure safe during periods of low tide. Five of these are inhabited during the spring and summer months.പ്രധാന ദ്വീപുകൾ are Langeneß, Oland (connected to ന്നു) and Hooge,called "The Queen of the Halligen". According to legend സമയത്ത് ഒരു കൊടുങ്കാറ്റ് ഈ ദ്വീപ് കൊടുത്തു refuge ഒരു ഡാനിഷ് രാജാവ് മനോഹരമായ Königshaus,decorated with white and blue tiles and baroque frescoes on the ceiling.The Halligen are particularly popular with nature lovers, and are often visited ദിവസം യാത്രകൾ, starting from അടുത്തുള്ള Husum.