Though few know it, Marsh Creek starts out as a very pristine brook at the east edge of Glen Falls. It is not navigable by kayak at that point, but just downstream at the corner of Glen Road and Mackay Street, Adam Pottle placed his kayak into the two-foot wide, and six-inch deep waterway, and began a four-and-a-half mile trip over the creek to the sluice gate just beyond the Marco Polo bridge in Courtenay Bay.