Where in Canada should I go?

Hello! I'm a 19-year-old in the UK.

I've had it boring through my teen years so far, but I've saved up money that I'll spend on a big trip to Canada.

I'll stay the entire next summer. I'm envisioning making a few friends and doing fun things such as swimming (beaches/lakes), hiking, hosting parties – being young and doing generic "late summer night" stuff. I'm extroverted and easily make new friends, but I want to maximize my chances of meeting the right people.

I'd like to be close to a city, but not in one (or in tourist spots – I'm looking to meet Canadians).

Which province/town/place would you recommend I go to, to achieve the summer I've described?

Edit: Wow, truly appreciate everyone's inputs! I'll make sure to read all of it. Also, slightly edited my goals