If I travel to Dublin or Rosslare by ferry do I need to self-quarantine?
Passenger Notice from the Government of Ireland
People arriving to Ireland from overseas are required to restrict their movements on arrival for 14 days unless they have travelled from a location with a normal precautions (“green”) security status rating. Britain and France are currently not on the the 'green list'.
The only exceptions are if you:
enter Ireland from Northern Ireland.
are an essential supply chain worker, for example, a pilot, seafarer or a haulier.
Guidance on how to restrict your movements is available from the Irish health service.