Glen Island has been called the “first theme park”. It was created in 1881 by US Congressman John H. Starin. As we walk around the island, we will see remnants of some of the past attractions. The castle, the pony and the welcoming guns are still there for us to view. I’ll also tell you how this island and the Slocum Disaster are tied together. This is a jewel that few city dwellers have visited.