KITCHENER -- Waterloo's mass COVID-19 vaccination clinic, located at 435 The Boardwalk, is set to open Thursday. People over 80 will be vaccinated first, followed by other people who are eligible as Phase One priority populations. "This is a public health-run clinic," said Cynthia Voisin of The Boardwalk Management. "It is going to be run during daytime hours to start. A lot of it's going to be dictated by the amount of vaccine supply we have in the region, so they're initially starting Monday to Friday by appointment only." A Cambridge clinic will open for people over 80 on the week of March 8. That location will be announced later this week.