Based on Canon and what's she's supposed to represent?
A walking mountain basically.
I mean, it's kind of debatable whether KanColle really has canon given how different official sources will flatly contradict each other's worldbuilding.
Seaport's size will vary from artist to artist, but she's usually pretty big. This artist in particular, however, made a series of advertisement-style images like this one where Seaport was specifically listed at 213cm - that's more or less 7 feet exactly.
I mean, it's kind of debatable whether KanColle really has canon given how different official sources will flatly contradict each other's worldbuilding.
Seaport's size will vary from artist to artist, but she's usually pretty big. This artist in particular, however, made a series of advertisement-style images like this one where Seaport was specifically listed at 213cm - that's more or less 7 feet exactly.
Generally, she's shown to be about seven to nine feet tall when among other abyssals or shipgirls, while as an enemy she's depicted as being as tall as a 5 story building while kneeling with her base.