Never even heard of Port Burwell before but looks fun - i have friends in Brantford, maybe a good day trip! Is the nude portion on the Dog Beach side?
Same Beach but you head West for about 1.5km or Park in Parking lot 5 and walk to the beach and Head to your right for about .5km till you see the sign.
I’ve been with friends when we were camping at the point nice quiet spot. Definitely worth the walk. Although we were not wearing thongs or anything for that matter