Outdoor activities
Channel Islands Occupation Society (CIOS) Jersey
The Channel Islands Occupation Society are a non-political, voluntary organisation, dedicated to the preservation and recordal of all aspects of the German Occupation of Jersey during the Second World War. Founded in the early 1970s, the CIOS are a Jersey Registered Charity, entirely run by volunteers.
- Seasonal opening
- Free for children
Price: £5 - £6
More Information
The CIOS has now restored several fortification sites that may be visited by the public at designated times. You will find Strongpoint Corbière, Battery Moltke, Battery Lothringen - the only Kriegsmarine battery in Jersey - along with the Resistance Nests at La Mare Hill and Millbrook. The Society manages a number of Atlantic Wall fortifications that are open to the public for tours. Most are open on weekends in the summer months, with guided tours available year-round.
We are open:
April, May, June, July, August, September, October
Monday: | closed |
Tuesday: | closed |
Wednesday: | closed |
Thursday: | closed |
Friday: | closed |
Saturday: | closed |
Sunday: | 14:00 - 17:00 |
- Indoor
- Outdoor
- Family friendly
- Parking
Tours & activities available

Strongpoint Corbiere Open Days
Explore the incredible M19 automatic mortar bunker and 6-loopholed machine gun bunker, interconnected by a deep underground tunnel! Knowledgeable volunteers will be on hand to guide you and give details of the fortifications along with an audio commentary explaining the original crew.
Apr 27 2025 ‐ Oct 12 2025

Battery Lothringen Open Days
Welcome to Battery Lothringen at Noirmont! We invite you to explore this unusual two-storey bunker complex and adjacent MP1 range-finding tower. Knowledgeable members will be on hand to help you with your visit and the CIOS has also progressively opened up a large proportion of the Battery's sealed bunkers behind the Command Bunker which allows the interested visitor to explore them.
May 18 2025 ‐ Oct 19 2025

Battery Moltke Open Days
Welcome to Battery Moltke at Les Landes! We invite you to explore the underground tunnels and bunker complex that make up this impressive site. Knowledgeable members will be on hand to help you with your visit and the CIOS has also progressively opened up a large proportion of the Battery's sealed bunkers behind the Command Bunker which allows the interested visitor to explore them.
May 04 2025 ‐ Oct 05 2025