The city has recently emerged from a localised coronavirus lockdown, and now Turismo de Lisboa has confirmed all the city’s tourist districts and attractions are open.

These include the city’s historic neighbourhoods, as well as regional attractions such as Unesco World Heritage site Sintra, coastal areas such as Cascais, and the entire Costa da Caparica.

It comes after the UK excluded Portugal from its initial list of safe travel corridors, and only granted a Foreign Office travel advisory exemption for travel to the country’s Azores and Madeira archipelagos.

The government will review the list later this month, with Portugal hopeful of inclusion after long looking like a certainty before reports of a spike in Covid infections in the Lisbon area.

Paula Oliveira, executive director at Turismo de Lisboa, said: “Since June, we have been welcoming visitors back to the wonderful Lisbon region.

"Visitors can be confident we continue to make their health and safety our top priority, while making sure they have unforgettable experiences, fantastic food and moments of authentic pleasure."

New health and safety protocols include strict guidelines on social distancing and the wearing of face masks in enclosed spaces; government-mandated hygiene and sanitation requirements, with a range of specific recommendations for different sectors.

The country’s tourism sector has developed a "Clean and Safe" seal to certify, and help tourists identify, businesses that are compliant with these requirements.

This stamp covers accommodation, tourist services and attractions, and restaurants.

"For ages, the city has been appreciated by tourists for its hospitality but, most importantly, for its safety," added Turismo de Lisboa, which represents nearly a thousand tourism businesses in the city and surrounding area.

"It is during these difficult times that unprecedented measures have been taken to provide for the wellbeing of the city’s guests and inhabitants, and manage health risks."