Princess Cruises has refurbished the 2,000-guest Sun Princess during a two-week refit in Singapore.
The multi-million-pound enhancements include a redesigned youth centre, new premium staterooms and upgraded onboard shopping.
Sun Princess is currently sailing in south-east Asia before returning to Australia for the 2019 winter season.
Her itineraries begin on the western coast before transitioning to the eastern coast and New Zealand.
Jan Swartz, Princess Cruises president, said: “South-east Asia, Australia and New Zealand have always had an allure for travellers and cruising is one of the best ways to explore them.
“We are thrilled to provide guests sailing the regions with our newest onboard features that enhance their cruise experience while sailing this beautiful part of the world.”
The enhancements continue Princess’ ‘Come Back New Promise’ campaign, with £330 million being invested across the line’s fleet of 17 ships.