An exploratory experience structure sets up a space of possibility with no prescribed path or sequence to follow. Participants are free to engage various possibilities or develop their own strategies to navigate the experience. The conditions of the space for exploration may change with time or may remain static. In game design, these kinds of experiences are sometimes called sandboxes, a reference to the sandbox you might have played in as a child.
Exploratory experience structures lend themselves well to situations where the participants define their goals for themselves. They are also well suited for situations where taking in a wide range of possibilities is most beneficial for the participants.
At the sexually permissive gatherings of The Dirty Gentleman, the experience structure is exploratory. The ground rules and etiquette set the range of possible behaviors on the part of the participants, but they are free to initiate activities of their own will. No schedule or pace is prescribed, though various areas of the gathering are designated for different activities. How active or passive any particular guest is throughout the event can vary widely and is up to their own engagement.