After the National Guard delivered materials for the final section of boardwalk through the string bog, there were several work days before mid-November of 2007, when the water started to get icy. The boardwalk wasn’t finished until 2008.  Since that time the Friends have held numerous volunteer work days to maintain the boardwalk for visitors to safely navigate their way through the Cedarburg Bog.  Every year the boardwalk the Friends built provides access to the heart of the Bog for hundreds of people to learn about this fantastically diverse wetland.