Kraken

[Suporex]

I am trying to fight with Kraken but after I will talk with the captian that is supposed to show me where Kraken is, he starts to swim and tells me to follow but after some time he just stops. Than when I talk to him and tell him 'Let's swim' he does nothing and I cannot see Kraken anywere around.

Di d anyone experience that? do I have to follow the boat or you could tell me where to go to meet Kraken

Thanks