What exactly is a thermal suite on Princess Cruises?
From a description of another Princess ship found on Travelocity: “…and a heavenly thermal suite where you’ll find heated tile lounge chairs with water running through them. (The thermal suite may be used by anyone receiving a spa treatment that same day.)” It also seems like saunas and steamrooms are part of most thermal suites, along with showers. Here are some photos I found of a couple’s cruise vacation on Holland America (probably very similar to what you’ll find on Princess): http://www.elite.net/~thehalls/thermal.