Visitors can join a Park Ranger for battlefield talks and walks; take a self-guided 8 1/2 mile auto tour with 11 stops through the battlefield; take a self-guided hike on the Bloody Lane, Cornfield, Final Attack, Union Advance, Antietam Remembered, Sherrick Farm or Snavely Ford Trails; and tour the Pry House Field Hospital Museum (check at the visitor center for hours).
The website has a battlefield scavenger hunt that can be printed out before touring the battlefield.