Rising from the shimmering waters of Lake Steinhude, the island of Wilhelmstein is a remarkable fusion of history and charm. Built between 1761 and 1765 by Count Wilhelm zu Schaumburg-Lippe, this man-made island was originally conceived as an impregnable fortress, later serving as a military academy, research station and even a state prison. Today, it is one of Germany’s smallest inhabited islands and a captivating destination for explorers, families, and history enthusiasts alike. Shaped like a star with four bastions and surrounded by tranquil lake scenery, Wilhelmstein offers a fascinating journey through time. Visitors can wander through the fortress walls, uncover tales of soldiers and prisoners, and admire the view from the tower’s summit across the glistening Steinhuder Meer. The island’s intimate size – only about 120 metres across – enhances its unique, almost otherworldly atmosphere. Art installations, historic architecture, and peaceful garden paths invite guests to linger by the water’s edge, where sunsets paint the horizon in golden hues. Once the testing site for the “Steinhuder Hecht,” the first submarine built in Germany, Wilhelmstein continues to embody innovation, resilience, and beauty. Whether exploring its fortress museum, discovering its artistic touches, or simply soaking in the calm of the lake, a visit to Wilhelmstein is an unforgettable encounter with living history amidst nature’s serenity. [1]
Good to know
Openings
During the season, from 20.03. - 31.10. the museum is open for you from 10:00 to 17:00 (weather permitting).
Price info
Price adult: €4.00
Price child: €2.00
Admission prices for the island fortress (museum)
Adults: € 4.00
Children 4-13 years: € 2.00
Children under 4 years: free of charge
Dogs are not allowed in the fortress, but are very welcome on the island of Wilhelmstein.
Adults: € 4.00
Children 4-13 years: € 2.00
Children under 4 years: free of charge
Dogs are not allowed in the fortress, but are very welcome on the island of Wilhelmstein.
Eligibility
Suitable for any weather
for Groups
for Class
for familys
for individual guests
Pet allowed
Suitable for the Elderly
for Children of all Ages
Linguistic proficiency
German, English
Other Furnishing/Equipment
Toilet
Baby Change
Payment methods
chargeable, Cash payment on site, Cash card / EC card
Contact person
Steinhuder Meer Tourismus GmbH
Company
Meerstraße 15-19
31515 Wunstorf
Author
Steinhuder Meer Tourismus GmbH
Meerstr. 15 - 19
31515 Wunstorf
Organization
Steinhuder Meer Tourismus GmbH
License (master data)
Steinhuder Meer Tourismus GmbH
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