If you have a subscription, you can take part in many activities in the form of a ticket hour. That means that you have to reserve a ticket in advance to be able to take part in a group class. There are no fewer than 300 of these classes a week, ranging from a barbell workout to yoga, and from singing to kickboxing. A small number of these ticket hours are even offered online so that you can take classes from home. Handy if you occasionally don't have much time, if you are abroad or if you'd like to try out something new without spectators.
You can reserve a 'ticket hour' through the RSC website or the RSC app. Before the class starts, you print your ticket at a ticket printer on the ground floor of the Gymnasion. Printing can be done from 3 hours prior to the start of your activity. This ticket, plus your membership pass, gives you admission to the class. The instructor may ask you to show both of them.