Saint Bavo's Cathedral is accessible for wheelchair users via a ramp in front of the entrance. The Visitor's Centre is in the middle of the cathedral in the left corner at the golden door. After purchase/validation of your tickets, the elevator at the end of the hallway will take you to the crypt (AR tour- and/or the upper choir hallway. In the central Chapel of the Sacrament, you can admire the Mystic Lamb/Ghent Altarpiece. 

An adapted toilet is also availble next to the crypt.