Swim at better lake beaches
On the eastern shores of Lake Huron lies The Pinery Provincial Park, a small but bountiful park with sandy beaches and loads of, as the name would suggest, trees. It’s a relatively short distance from Detroit, and offers some of the most beautiful sunset views you’ll find on Lake Huron.
Take advantage of Canada's cheap(er) prescription drugs
This legal-ish activity is a relatively common reason for Yanks to cross the border. Being that Canada -- like many other countries -- actually puts a cap on how much prescription drugs should cost, generic drugs are often much cheaper over there than in the US, provided you don’t have insurance. Take a copy of a prescription that you receive from a doctor and turn it in to a Canadian pharmacy. Just make sure you don’t agitate the border patrol on your way back in.
Converse with inebriated, 19-year-old Americans
On any given Friday or Saturday night, the likelihood of running into an American teenager learning about the benefits of legal drinking while roaming the streets of Windsor is quite high.