I have been searching for official information which can help us make informed decisions on any travel. Self isolation / quarantine may apply for people travelling from the UK, Bailiwick of Guernsey or Jersey to France and visa versa, so please do check the regulations first.

Please note, wearing a mask is mandatory in public transport in France.

Official sites

Two official websites for Covid hotspots are : www.bretagne.ars.sante.fr and www.normandie.ars.sante.fr 

French government site – in English – www.gouvernement.fr/en/coronav…
www.gouvernement.fr/info-coron…

Government map – www.gouvernement.fr/info-coron…

Cherbourg peninsular – www.manche.gouv.fr/Politiques-…

Brittany – Côtes-d’Armor – www.cotes-darmor.gouv.fr/Polit…

Brittany – Finistère (west of Trebeurden) – www.finistere.gouv.fr/Actualit…

Brittany – Morbihan – www.morbihan.gouv.fr/Actualite…

Guernsey – covid19.gov.gg/

Jersey – www.gov.je/Health/Coronavirus/…
also
www.gov.je/health/coronavirus/…

Other information

FT article from 11 May – www.ft.com/content/2819976c-22…

Report from 18th May which says – “Other clusters have also appeared in hospitals, such as 50 cases in Lannion, Brittany, until now considered a ‘green’ zone with relatively few cases.” also – “As of Monday, no clusters have been reported in Normandy or Corsica” www.rfi.fr/en/france/20200518-…
also
www.rfi.fr/en/france/20200518-…

Brittany Tourism site – www.brittanytourism.com/