The ships come in and out frequently at this small port made exclusively for the Naval vessels. You may see one to two per week sometimes. Most stay about a day or two and then they are gone. During their stopovers, you'll see the military women and men dressed in civilian clothes heading for restaurants, stores and other places where they can enjoy terra firma for a short time.
The ships in port are awesome to look at and provide an added bonus to strolls both on the strand and on the Seal Beach Pier. Then next time you visit maybe you will be lucky enough to see one in the distance. You are only allowed to see them from afar, as they are stationed in secured areas.