From March 2016 any visitor travelling to Canada – including those who don’t currently need a visa to visit – will have to get an electronic travel authorisation (eTA) to enter Canada. From 1 August 2015, travellers will have the opportunity to go online and apply for their eTA ahead of time. For more information see the official Canadian government website.
There is a general threat from terrorism. See Terrorism
Around 724,000 British nationals visit Canada each year. Most visits are trouble free.
Take out comprehensive travel and medical insurance before you travel.