The 17th annual Louisiana Bicycle Festival returns to Abita Springs Saturday. Before 10 a.m., participants gather for an informal marketplace featuring sales and swaps of bikes and bike parts, including unusual and rare bicycles. At 12:30 p.m., Abita Mystery House owner and painter John Preble leads a short bike parade through the town's historic district. The fest is operated by bicycle enthusiasts, many of whom supply prizes and trophies to be distributed throughout the day. Some festival food is for sale, and there is a brewpub within walking distance of the festival grounds. Free admission.