Anyone heading to Italy this summer might want to double-check they've packed more than just their sunglasses and boarding pass.
While plenty of travellers know they need a valid passport to enter the country, there's another rule that regularly catches tourists out once they've arrived.
Under Italian law, you're required to carry valid photo identification with you at all times, as police can stop you and ask to check your identity or confirm the date you entered the country.
The official Gov.uk website warns: "Under Italian law, police can stop you at any time to carry out an identity check or your date of entry into the country. Carry photo ID with you at all times. "The police will normally ask for your full passport if you are stopped while driving."
For British holidaymakers, that usually means carrying your passport.
Anyone going to Italy this summer, listen up! (Getty Stock Images) If you're stopped while driving, officers will normally ask to see your full passport rather than a photocopy.
The UK Foreign Office advises travellers to keep photo ID on them throughout their stay, as failing to produce it during an identity check could lead to unnecessary delays or complications.
Of course, carrying your passport everywhere comes with its own worries.
Italy is one of Europe's most popular holiday destinations, but busy tourist hotspots are also known for pickpocketing and bag theft.
The Foreign Office warns visitors to keep their belongings within sight at all times, particularly on public transport, at airports, train stations and major attractions.
It also advises against carrying all your valuables together and recommends leaving spare cash and other important items in a secure place, such as a hotel safe.
The UK Foreign Office advises travellers to keep photo ID on them throughout their stay (Getty Stock Images) If your passport is stolen, things can get quite stressful as a police report alone won't allow you to leave Italy, meaning you'll need to arrange emergency travel documents before you can return to the UK.
It's also worth checking your passport before you travel as British passports issued within the last 10 years are generally accepted for travel to Italy, provided they have at least three months' validity remaining after your planned departure from the Schengen Area.
If your passport doesn't meet those requirements, you could be refused boarding before you even get on the plane.
With thousands of Brits expected to visit Italy over the coming months this summer, taking a few minutes to check your passport's expiry date and keeping your ID secure during your trip could save a major headache later down the line.