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
| maandag: | closed |
| dinsdag: | closed |
| woensdag: | closed |
| donderdag: | closed |
| vrijdag: | closed |
| zaterdag: | closed |
| zondag: | 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.
May 10 2026 ‐ Sep 27 2026
Battery Lothringen Open Days
Visit the impressive multi-floored restored M-132 Underground Command Bunker, which served as the ‘eyes’ for the Naval Coastal Artillery Battery that sat behind it, as well as many other onsite bunkers. Plus, the Jersey War Tours pop-up shop, with militaria for sale, and get ‘hands-on’ with WW2 equipment. Adults £8, Children under 16 Free, CIOS Members and Jersey War Tours Patreons Free.
Apr 19 2026 ‐ Dec 20 2026
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.
Apr 19 2026 ‐ Sep 20 2026