By 1929, the branch was extended from Okeechobee southeast and around the eastern side of Lake Okeechobee.  It passed through Belle Glade and South Bay before terminating at Lake Harbor on the south side of the lake at the Miami Canal.  Here, it connected with the Atlantic Coast Line Railroad's branch from Harrisburg. The Florida East Coast Railway considered extending the line further south to Hialeah to have an alternative route for the main line, but the line was never built past Lake Harbor.