Plouguerneau, Brittany

Iliz Koz

Medieval Archaeological Site

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
Archaeological remains of the Iliz Koz site on the Plouguerneau coastline

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.

Plan your visit

Iliz Koz, Plouguerneau, 29880, Finistère, Brittany
48.6217° N, 4.5083° W
Contact us