It stands for Romantic Escape at Sea package. It includes a welcome gift, you are able to make reservations at Palos and the spa ahead of time, to avoid the ressie rush after boarding. I think there is a turn down service with rose petals. Also, a spa service for two. I'm sure others that have done it will weigh in with more details. I think it runs around $300 to $400? I think it went up after the first of the year.
Jenn