Sea days can be different things to different people.
They are usually loaded with scheduled activities throughout the ship. Events like cooking demonstrations, educational lectures, poolside games, dance classes and movies make sea days anything but boring.
Many people choose to do the Spa, relax by the pool, or recover.
Often, formal nights are held on a sea day, so passengers have plenty of time to primp or go to the ship’s salon before dressing up for dinner.