The Rehoboth Beach Farmers Market will open for its 18th season from 10 a.m. to 2 p.m., Tuesday, May 7, in Grove Park beside the Rehoboth Avenue traffic circle. Parking is free during market hours in the parking lot at the visitors center, 501 Rehoboth Ave., as well as on Sussex, Columbia and Henlopen avenues and the cross streets. For more information, go to rbfarmersmarket.com.