How to take the train to reach downtown Toronto from Pearson Terminal 1?

Pearson Terminal 1 is located in Toronto, Canada. To reach downtown Toronto by train, you can take the following steps:

1. Depart from Pearson Terminal 1 and go to Toronto Pearson Airport Train Station.
   
2. Find signs to the train station within the terminal, usually on the departures level.
   
3. Take the Toronto Pearson Airport Express train (UP Express), which connects the terminal to Union Station in downtown Toronto.
   
4. The train ride takes about 25 minutes. Once you arrive at Toronto Union Station, you can easily travel to other parts of downtown Toronto by subway or walking.
   

Please note that when taking the train, it is recommended that you purchase tickets in advance or use electronic payment methods such as Tap-to-Go to avoid delays in your journey.