Cruise Royal Princess' adult relaxation area to have cabanas By Tom Stieghorst / November 21, 2012 Share 1 -- Princess Cruises said the adults-only area on the Royal Princess will have private cabanas.Cabanas in the secluded adult relaxation area, the Sanctuary, will cost $80 per half day, Princess said. There is also a $25 daily reservation charge to use the Sanctuary.There will be four Sanctuary Cabanas with televisions, wireless headphones, robes and slippers, a welcome cocktail and a mini-bar. In addition, there will be two Lotus Spa cabanas that offer massages.The Sanctuary on Royal Princess will be 20% larger than the Sanctuary space on other Princess ships to accommodate the cabanas.At the nearby Retreat Pool, cabanas can be rented for $50 per half day. Guests reserving cabanas in either area can buy a gourmet picnic starting at $40.The Royal Princess enters service in June 2013. Follow Tom Stieghorst on Twitter @tstravelweekly.