The RV Oceaneer Lab's maiden voyage took place on July 30, 1898. It served as Mary Oceaneer's floating base for her deep-sea diving excursions and treasure hunting expeditions. Artifacts line the walls of the ship's public areas. These include a golden sword found on a deep sea dive on December 5, 1901 (with her parrot Salty's custom diving suit accompanying it) to a more recent expedition to Castaway Cay that yielded a variety of buried treasures. Items relating to other members of the Society of Explorers and Adventurers like Henry Mystic and Harrison Hightower III are also on display. Captain Oceaneer's fondness for pirate lore can be seen throughout the ship. A painting of the first "Pirate Night" in 1898 holds a prominent spot in the "Craft Studio" and shipping crates labeled as containing remains of Shipwreck Cove and the Dead Man's Chest can also be found in the area. At an unspecified time, years later in her career, Mary would replace the RV Oceaneer Lab with a new vessel known as the the M.S. Salty IV that ended up running aground at Typhoon Lagoon. As she was travelling with a new parrot named Duncan at this point, it is possible that this new ship was named for the old bird.