OSCEOLA COUNTY, Fla. - The temporary closure of the Southport Canal, also known as the C-35 Canal, has been extended in order to complete ongoing maintenance work. The canal stretches between Cypress Lake and Lake Tohopekaliga. The S-61 Boat Lock will also be closed to public access during this time. The canal and boat lock are expected to remain closed until Jan. 15, 2022.