Welcome
A thousand-year heritage to preserve
On the northern Finistère coastline, Iliz Koz (the old church in Breton) is an exceptional medieval archaeological site. Our association works to preserve, study, and share it with the public.
Discover our history
News
Upcoming events
15 June 2026
Visit
European Archaeology Days
Guided tour of the site and presentation of the latest discoveries during the European Archaeology Days.
12 July 2026
Workshop
Volunteer Excavation Campaign
Join our week-long excavation campaign supervised by our team of archaeologists.