The basin was originally constructed between 1936 and 1937 as a seaplane base for the German military.
Following World War II, the area was decommissioned and designated as a nature reserve in 1962.
It acts as a critical 'stepping stone' for birds flying along the East Atlantic Flyway.
The site hosts a specialized visitor center, the Vogelkiosk, operated by the Verein Jordsand association.
The brackish water environment allows for a unique mix of both marine and freshwater species.
The Rantum Basin (Rantumbecken) is a 568-hectare former seaplane base converted into one of Northern Germany's most significant bird sanctuaries. It consists of a large, enclosed saltwater basin surrounded by dikes, providing a diverse habitat for migratory birds. The site serves as a vital resting and breeding ground for species such as avocets, common terns, and various duck populations. The Verein Jordsand organization manages the area, focusing on habitat conservation and ecological research. Trails circle the perimeter, offering elevated views over the water and marshlands. The landscape features saline grasslands and mudflats that fluctuate with tidal influence and water level management.
The elevated sections of the dike path provide expansive panoramic views of the entire basin against the horizon.
Bring high-quality binoculars or a spotting scope, as birds are often at a distance from the walking paths.
Dress in windproof layers, as the dikes are fully exposed to North Sea breezes regardless of the season.
Stay strictly on the designated circular path to avoid disturbing nesting sites in the protected interior.
Do not attempt to enter the water or the internal dike areas, as these are strictly off-limits to protect fragile nesting grounds.
The visitor center exhibits have seasonal operation; check the Jordsand website for current accessibility before arrival.
Maintain silence to avoid flushing birds; dogs must be kept on a short leash at all times.
