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Diamond Princess recently underwent a $30 million makeover, one of the major projects was the transformation of the youth room into a spanking new 817 square-metre indoor and outdoor bath and garden complex.

Unveiled this week, the Spa now features an indoor bath experience as well as an outdoor open-air Japanese hydrotherapy pool.

There’s also an ocean view sauna and bath and a stone bath with an Utaseyu – a cascade of hot water used for relieving tension in the back and shoulders.

Princess Cruises kept a day-to-day log captured workers ripping out carpeting and tearing down walls to build a modern spa.

In the gallery below you can see the Japanese spa come to life and understand why it can cost cruise lines millions to ensure their ships meet cruise passenger’s at sea desires.

Otherwise, click here for the Diamond Princess day-to-day photo journal.

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