On Friday a "Baltic bubble" will open, allowing people in Estonia, Latvia and Lithuania to travel freely between the three countries. It includes travel by rail, air, and sea.

A quarantine remains in place for visitors from other countries.

None of the three nations reported more than seven new cases on Wednesday, according to Reuters. Together they have seen under 150 deaths in total.

The EU has promised there will be a European summer tourist season in some form. The industry provides almost 10% of Europe's economic output.