Following the terrorist attacks on the Charlie Hebdo offices and incidents in and around Paris you should be especially vigilant and follow the security advice issued by the French authorities.
There is a high threat from terrorism. Due to ongoing threats to France by Islamist terrorist groups, and recent French military intervention against ISIL, the French government has warned the public to be especially vigilant and has reinforced its security measures. See Terrorism
There are large numbers of illegal migrants in and around Calais, who may seek an opportunity to enter the UK illegally. Although local police patrols have been reinforced, you should keep vehicle doors locked in slow moving traffic and secure your vehicle when it is left unattended.
Around 17 million British nationals visit France every year. Most visits are trouble-free.
You should apply for a free European Health Insurance Card (EHIC) before you travel. If you already have an EHIC, make sure it hasn’t expired. Some medical costs aren’t covered by the EHIC so you should also take out comprehensive travel and medical insurance before you travel. See Health
The Overseas Business Risk service offers information and advice for British companies operating overseas on how to manage political, economic, and business security-related risks.