There are many things to do while the ships are in port. There are no shows, the casino is closed, and the shops are closed too. There should be plenty to do. All you have to do is look in the Carnival Capers and everything that there is to do is listed there. The spa is always cheaper when the ship is in port. I also reccomend to do your tanning then if you want to becuase there wont be many people to bother you. Also using the pool and if you want to do some laundry. If you dont leave the ship when it is port you should always do something that is usually busy becuase usually when the ship is in port it wont be busy. If you have any more questions, feel free to ask me.