Although you may be disappointed in cutting your Man vs Wild experience a little short, Johncrawlerz scoped out the next best thing:
As a friend of mine and I tried to find the restrooms at Coopers on a fall afternoon, we were informed that the toilets were closed for the season and had to redirect toward 'the pit toilets below the road'; Two unisex windowless outhouses with quite the view and vintage screens to frame it all.