While the former is what the place name `` Heligoland '' normally is used to refer to , the latter is somewhat smaller , lower , surrounded by sand beaches and not permanently inhabited .

While the former is what the place name `` Heligoland '' normally is used to refer to , the latter is somewhat smaller -LRB- NUMBER@1 km ² -RRB- , lower , surrounded by sand beaches and not permanently inhabited .
