Entrance: parking lot at St. Aubin and Atwater has accessible parking spaces, the parking lot is about 190 feet from the entrance to the OAC. If possible, we recommend that guests with limited mobility be dropped off near the entrance from Atwater Street. Electronic-assist doors are available at the entrance and exit. Entire Venue: An elevator is available to access all three floors of the building, ramps are installed behind the sustainable home and behind the hunting exhibit on the second floor.