Lavonia Boat Expo 2023, Mar. 18, 10 a.m. - 4 p.m. Lavonia holds its fourth Spring boat show to usher in Lake Hartwell’s boating and recreation season. New boats and trucks on display. Lake-themed vendors and exhibitors. Nature and wildlife curated art show. Children’s activities. East Main Street. Rain date March 25. 706-356-1926.