The Zoo-de-Mack is a weekend of huge parties with great bands, one of the most scenic bicycle rides in the country, a lot of sunshine, views of the mighty Mackinac Bridge, and one magical island. The Zoo-de-Mack is NOT A RACE but a gathering of approximately 2,000 outdoor enthusiasts who want to enjoy a little physical exercise together (and party) in one of the most beautiful areas in the state of Michigan and all of the Midwest!