The work is underway at Forgacs Cairncross Dockyard in Brisbane, Australia, until June 20.
Visitors to www.princess.com can watch daily as Dawn Princess receives new interior furnishings and finishes, a giant poolside screen and the adults-only Sanctuary deck retreat.
Photos of the progress will also be posted to Princess' Twitter feed, Facebook page and Flickr photostream.
Drydock work includes the installation of new carpet and upholstery, and the coating of the hull with new silicone paint.
Dawn Princess is homeports in Sydney for year-round Australia-based cruising. On July 5, the ship departs on a 104-day world cruise, which Princess is touting as the longest round-trip voyage from Australia.