It isn’t like a switch is turned on and we can suddenly go anywhere we want again! Countries may not want us straightaway and will open themselves to tourists at different times. Even if they are open to visitors, there may well be restrictions in place.
For instance, visitors from countries which have had a high number of cases of COVID-19 may be banned initially; this would include the UK and USA. It's also been suggested that countries may insist on testing passengers on arrival or you may need an "immunity passport" or other type of certificate stating you are free of the virus.
Australia and New Zealand have announced they will stay closed for a long time. Argentina has banned all flights until September. However the tourism businesses within these countries will be desperate to welcome visitors back if they are to keep going so they will be lobbying their governments to open.
Other destinations are desperate to get tourism back. The island of Sicily has announced that it will pay towards your flights and hotel if you visit this year once restrictions are lifted, although this may not to be until the autumn. Cyprus is hoping to open to visitors as early as June, as is Italy. To see updates on which countries are open see our daily updates.
Transport providers will need to be operating the routes again, and that might not happen overnight either. Take the airline industry; a lot of planes have been put in storage, so effectively furloughed. British Airways is hoping to resume around half of its flights in July, but has also announced thousands of redundancies as it is not expecting to return to a full service this year.
Flights won’t be brought back unless the airlines are confident that there are enough people (and/or cargo) wanting to travel the route for it to make sense. Trains, ferries and cruise ships will also be operating a reduced service until numbers return. The one airline that has started flights out of the UK is Wizz Air, which started a limited service from 1 May, and has announced further routes in June and July.