The vendor tents return to the Tennessee Aquarium plaza, 1 Broad St., on Saturday, March 22, as Chattanooga River Market begins a new season. Hours are 10 am.-5 p.m. Saturdays through Oct. 4. Entertaining this week is Mason Dixieland Line. The Dixieland version of local big band Sweet Georgia Sound will perform between 12:30 and 3 p.m. Admission to the River Market is free. For more information, call 423-648-2496 or visit ChattanoogaRiverMarket.com.