How fortunate, then, that you should be on the same island as Curufin, our boat builder. Consult with him and ensure that his vessels are suited to these particular surroundings.

[He doesn't personally know ships well enough to properly judge Curufin's construction choices. Alucard's specialist knowledge should certainly prove useful in other ways too.]

Teach our guardsmen what they ought to know of the sea and sailing. I presume you swim?