The airy, tented cabanas are located on Observation Deck in an area called the Retreat and around the mid-ship pool on Lido Deck. Furnished with modern woven chaises, ottomans and upholstered settees, all cabanas come stocked with bathrobes and plush towels, handheld fans, an Evian spray mister and iPods(TM: 88.60, +1.71, +1.96%) preloaded with great music. Chilled waters are available and guests can look forward to iced fruit skewers in mid-morning and frozen grapes, chocolate-covered strawberries and a glass of champagne in the afternoon.
I'm not sure whether you get the things mentioned above in both the Lido cabanas and the retreat cabanas.
I hate sitting directly in the sun, I always grab a chaise and find a place in the shade. My least favorite part of cruising is dealing with chairs and chair hogs or being forced to "reserve" one myself. My wife and I are pretty frugal, but we're not hesitating to fork over the cash for a cabana. We don't need it all day or all week, but I've already read that it can be iffy booking them by the day once on board.