Hi there! I live on the other end of the island in St. John's and recently got a test at CareGivers here in the city. I know they have an office in Corner Brook, however I am not sure if they test there but it's certainly worth reaching out to them. It cost me $75 for an antigen test for a trip to the USA in early September, and I had the results in 20 minutes.

Enjoy western NL - I had the pleasure of spending many years in the region, and it's truly remarkable! A drive around Gros Morne and the Tablelands is a must, Corner Brook is a very charming city and, if you have time, a trip down to Burgeo for the beaches is well worth it. The Port au Port peninsula is also worth seeing - spectacular scenery and a drive around it is only two hours.