This question I assume has been asked before but; on St. Thomas, where can you obtain a PCR test to meet the 72 hour requirement for a return to Toronto?

Community Health Clinic in the Paragon Bldg behind the hospital is where to go. I returned to Canada a few weeks ago.
Unless things have changed lately, you do not make an appointment. Show up, fill out a form, pay your bill, then you line up outside, the technician comes out to do it and you get an email with results a short time later.
https://www.facebook.com/communitymedicallaboratoryvi/

Kerry has a good answer to the question. This is where we go if we need a reliable timely test.

Cheers, RickG

We thank you and Kerry, safe travels.

Switch health can supply proctored lamp Covid tests to re enter Canada. No need to go to community labs. Less expensive too.

https://www.switchhealth.ca/en/partners/aeroplan

Thanks Warren