Toronto is a lively city that offers something for absolutely everyone. It is the most populous city in Canada and an international centre of arts, culture and business, so it will certainly meet all your expectations.
While Toronto is an all-year destination for many travellers, the best time to visit is between May and October, since this is the period that offers the friendliest temperatures. Winters can be very cold, especially if you are not used to low temperatures, so plan your visit accordingly.
Toronto is an exciting city, which hosts numerous interesting events all year round. On the 24th of May, you can enjoy Victoria Day, a national holiday in honour of Queen Victoria with celebrations and fireworks. On the 1st of July, Canada celebrates the Canada Day, a national holiday with parades, carnival and festival. During the 1st and 2nd week in July, Toronto hosts the Toronto Fringe Theatre Festival, on the 2nd and 3rd week of July, there is the Beaches International Jazz Festival with concerts and gourmet food trucks, on the 4th week of July and 1st week of August, there is the Caribana, the largest Caribbean carnival in North America, and on the 2nd and 3rd week in September, you can visit the Toronto International Film Festival.
If you are travelling to Canada, you don't normally need a visa as a British citizen. Large amounts of cash must be declared to customs on arrival in Canada.
Life in general is cheaper in Toronto than in London and Britain as a whole. You can get a lunch from around 15 CAD and beer from about 6 CAD.
When arriving at Toronto airport, you can take the Union Person Express train for about 30 CAD (one-way ticket), which reaches central Toronto in around 25 minutes. You can also take the bus number 192 (TTC) to Kipling Subway Station for around 3 CAD for a single ticket. If you prefer to travel by taxi, a ride from the airport to central Toronto will cost you about 60 CAD and will take about 25 minutes. If you plan on using public transport to travel around Toronto, you should know that TTC operates the underground and trams. Single tickets cost about 3 CAD, and you can get a day travel card for about 12 CAD and weekly tickets from about 40 CAD. If you plan on moving around the city by taxi, the prices start at around 10 CAD for the first 3 km, and then around 1.75 CAD per each additional km.
When looking for accommodation, keep in mind that hostel prices start from around 35 CAD per person per night, while 3 star hotels on average cost from around 70 CAD per person per night.