We are sailing on the Explorer of the Seas on Mar.8 to the Eastern Carribean. It will be my husband and I and 2 18 year olds. We have been on 1 Carnival cruise and RCC's Viking Serenade-many years ago- and recently a 3 day on the beautiful Radiance of the Seas. I wanted the family to experience a big ship. Is it too big? Any suggestions from anyone who has sailed on Explorer for making sure we experience all there is to offer?