Seabourn is famous for its small-ship luxury cruises, and Seabourn Expeditions, the company's expedition line, is no exception. Seabourn Venture and Seabourn Pursuit are both staffed with expert scientists, scholars, naturalists, and guides. Activities include hiking, snorkeling, scuba diving, and Zodiac cruising. Both vessels also offer custom-built submarines. Seabourn Expeditions currently sails to Antarctica, South America, the Arctic, and the Amazon.