The FCDO currently advises against all non-essential travel to the Greek islands of Lesvos, Tinos, Serifos, Mykonos, Crete, Santorini and Zakynthos. This advice is based on the current assessment of COVID-19 risks. The advice was announced on 11 September and published on the FCDO website.
In making decisions about travel advice, the FCDO considers the scientific evidence. Public Health England (PHE) and the National Travel Health Network and Centre (NaTHNaC), the organisations mandated to provide health advice to British nationals travelling overseas, assess the risk to an individual of exposure to the virus in each destination based on data covering virus incidence rates, trends in incidence and deaths, transmission status and international epidemic intelligence as well as information on a country's testing capacity. In addition to the data on epidemiology, our overall assessment also draws on the latest information from our network of embassies and high commissions, on the situation in each country and territory.