The UK Gov latest info on: Visiting Europe from 1 January 2021Passports:
On the day you travel, you’ll need your passport to both:
have at least 6 months left
be less than 10 years old (even if it has 6 months or more left)Healthcare:
Your European Health Insurance Card (EHIC) will be valid up to 31 December 2020 (for tourists).Driving
You may need extra documents from 1 January 2021.
You might need an international driving permit (IDP) to drive in some countries.
If you’re taking your own vehicle, you might also need a ‘green card’ or valid proof of insurance and a GB sticker.Pet travel: allow at least 4 months to arrange
From 1 January 2021 you will not be able to use the existing pet passport scheme. Instead you’ll need to follow a different process, which takes 4 months.Visas for short trips: you will not need one if you’re a tourist
If you’re a tourist, you will not need a visa for short trips to EU countries, Iceland, Liechtenstein, Norway and Switzerland. You’ll be able to stay for up to 90 days in any 180-day period.
You may need a visa or permit to stay for longer, to work or study, or for business travel.Border control: you may have to show your return ticket and moneyMobile roaming: free roaming may end
From 1 January 2021, the guarantee of free mobile phone roaming throughout the EU, Iceland, Liechtenstein and Norway will end.
Check with your phone operator to find out about any roaming charges you might get from 1 January 2021.https://www.gov.uk/visit-europe-1-january-2021