We have always cruised the eastern and I for one LOVE the sea days. It gives me a chance to relax and enjoy myself. There is so much to do that I feel I would miss out on if we were at an island every day - movies, shows, the wine tasting, etc. We have cruised on other lines to the carribean from Miami and San Juan and I always feel that I don't have a chance to enjoy myself on the ship when we are a port everday.
