A Petersburg Boat floats under the Butt Memorial Bridge on the Augusta Canal. One-hour tours from Enterprise Mill are available daily. Three-hour tours will resume in April. One-hour tours cost $10 for adults, $8 for seniors, $6 for students and $4 for children 4 and younger. Admission to the Interpretive Center is included. For information, call (706) 823-0440, ext. 4.