Big Sable Lighthouse bus trips begin Saturday. #PureLudington #BigSableLighthouse #LudingtonStatePark. HAMLIN TOWNSHIP — The Sable Points Lighthouse Keepers Association has announced six bus event days at the Big Sable Lighthouse, located in Ludington State Park. The first bus day is Saturday June 24 with round trip bus transportation is offered from the building next to the State Park office to…