Embark on your catamaran cruise to the two "folds" of Twofold Bay, the third-deepest natural harbor in the Southern Hemisphere. In legend, the bifurcated bay (which covers nearly 12 square miles) was also home to Old Tom, a storied killer whale. As your catamaran gracefully cruises the bay, gaze at the jagged cliffs, protected inlets, and jade-colored vegetation of the 26,000-acre Ben Boyd National Park. Be enchanted by the bay's sapphire waters and intrigued by the unspoiled beaches that pop up along the coastline. Learn more about whaling activities in this region, which are said to have begun with the ancient Aboriginal people.