Yoga by MMS | Williamstown Yoga Studio is a pilates, yoga, and barre studio in Williamstown, Victoria, 8 km from the CBD. Any pass that you purchase through Mindbody will activate from the first yoga class that you book. This means that if you book your first yoga class on Wed 10th January (for example) and then go to book another yoga class on Mon 8th January, the system will not be able to backdate and recognise your pass. To fix this. Find more pilates and yoga studios near Williamstown in our Victoria directory.