Gymnasium (Wyvern)
The Gymnasium is located in Castle Wyvern and was installed after David Xanatos rebuilt the castle atop the Eyrie Building.
The Family Xanatos often works out here. Xanatos has sparred with Owen and once lost a judo match to him, a moment where he began to fear that he was losing his edge. It was also in the gym that Fox received the phone call that confirmed she was pregnant. ("The Edge", "Outfoxed")