MacArthur Park, an often underutilized 2.1 acres along the Clinton River in Mount Clemens, will soon become the first of a dozen canoe and kayak launch sites under the direction of the Clinton River Watershed Council.The official opening is just a few weeks away and follows an unusual crowd-funding project, according to Amanda Oparka, a CRWC planner who enjoys kayaking on the river at least five times a year.