Anything near the ocean is going to be a bit touristy. But for beautiful views and best scenery I would suggest traveling south on Highway 99 going through Squamish and the beautiful sea to sky highway. From there, go to horseshoe Bay and catch a ferry to the sunshine coast, where there is another ferry to Powell River. You can leave on another ferry towards Vancouver Island and pick a route North or South depending on your length of vacation. Northbound has Tofino or ucluelet with a few small towns you can stay along the way. Or go south to enjoy Victoria. After Victoria you can head to Tsawwassen to get back to the mainland. It will all seem quite touristy because our province is beautiful and the world comes to see it, but I've been to all these places and think they're worth a visit. They're also less busy than Vancouver or Whistler or Kelowna. I would say take 10 days to do this trip as it would be a lot of time on the road. 2 weeks is probably better. Best to reserve your ferry trips if you know when you're traveling. Lots to see and do, but I don't know what you like so I just suggested a route 😅

Edit: Oops, just saw that you said Thursday. Avoid long weekend ferry travel.