Mary Alice Park offers three boat ramps on Lake Sidney Lanier with a courtesy dock for unloading/loading, operating 24 hours for boating access.

Day-use areas are open 6 am to 9:30 pm (March-October) and 6 am to 7 pm (November-February), with amenities including picnic facilities, restrooms, and a sand beach with swimming area; a daily or annual pass is required for ramp access ($10 daily or $60 annual).