By 1998, an extensive survey discovered that the hull was continuing to corrode in the humid atmosphere of the dock and estimates gave her 25 years before she corroded away. Extensive conservation work began which culminated in the installation of a glass plate across the dry dock at the level of her water line, with two dehumidifiers, keeping the space beneath at 20% relative humidity, sufficiently dry to preserve the surviving material. This being completed, the ship was "re-launched" in July 2005, and visitor access to the dry dock was restored. The site is visited by over 150,000 visitors per year with a peak in numbers in 2006 when 200,000 people visited.