This is one of the 2 seater bikes that you can rent to bike around Mackinac Island. Biking around the island is very fun, especially if you go with someone else. But as I mentioned in a previous post, if you decide to rent a bike try to find a place with good bikes. My husband and I had a horrible time with this bike- we found that the person in the back inevitably begins to slide forward and down off the seat, which makes it difficult for them to help peddle, and also causes occasional "stop peddling" moments while the back person trys to reposition.
I took this shot just inland a bit when we stopped for a toilet break. The forests on Mackinac Island are great- very fun to walk around in and through. Much of the island is a state park so you can wander around a bit, and there are plenty of easy trails to walk on.