Prone to tidal flooding, the Halligen islands are surrounded by the turbulent North Sea, the screams of seagulls and the smell of the sea. The flooding tides, the rising sea levels – the pier is already flooded. Only in the middle of this Hallig island do your feet remain dry. After a while though, the water flows back out again. The tides have moved like this for thousands of years.

However, the sea level rises every year. Terps (man-made mounds) provide protection from high water. In one of the themed rooms, you can build your own terp together with other visitors and test it to see if the houses can endure the flooding.


Waiting for the

Storm surge

The inhabitants of the Hallig Langeness live on man-made hills, called terps, which provide protection against flooding. Initially, the terps were used solely as escape hills, but later entire farms were built upon them. During storm surges, the terps are the only things on the Halligen islands that remain above water. It’s an impressive natural spectacle that continues to attract tourists to the Hallig, some of whom stay at the Neuwarft guesthouse operated by Fiede Nissen, a former postman who delivered the mail by boat.

The Hallig Langeness, a travel station at the Klimahaus, is located off the North Sea coast of the German state of Schleswig-Holstein. During low tide, the Hallig can be reached by a traditional open-air cart train. Ferries supply residents with all the food they need. Compared to other parts of Germany, the weather on the Hallig is cooler due to the Atlantic climate.

However, in winter, the climate is usually warmer. As a result of climate change, sea levels in the North Sea are rising continuously. In the 20th century alone, sea levels rose by 20–30 cm, due to Greenland’s ice melting and the thermal expansion of water. The frequency of storms and storm surges is also increasing. The small Halligen islands, of which Langeness is one, are particularly affected.


Klimahaus® Bremerhaven

Am Längengrad 8

27568 Bremerhaven


T.: +49-(0)471-902030-0

F.: +49-(0)471-902030-99




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Opening hours


Mon - Fri:09 am - 06 pm
Sat, Sun, Holidays:10 am - 06 pm



Opening hours

July to August

Mon - Fri:  09 am - 07 pm
Sat, Sun, Holidays:  10 am - 07 pm



Opening hours

September to February


Mon - Fri:10 am - 06 pm
Sat, Sun, Holidays:10 am - 06 pm
24 and 25.12.closed
31.12. and 01.01.closed



Ticket Prices

Adults 18 years and overfrom 14,50 EUR
Group/Adults (15 people or more)14,00 EUR

from 9,50 EUR

(15 people or more)
9,00 EUR
Children aged 4 years and underFree
Family Ticket from 33,00 EUR