Parish closes are a distinctive feature of Breton culture in the historic Léon diocese, in which Guimiliau stands. As the name suggests, a close is a completely enclosed church yard, usually with a commanding entrance arch.
Distinctive to Breton culture within the historical Léon diocese, particularly at Guimiliau, parish closes are completely enclosed churchyards usually adorned with imposing entrances. The term "close" signifies this characteristic feature.