You see the sinking ruins to the east? They were, not long ago, a temple to the shark loa, Gral.
The naga tore down his temple and are stealing his secrets. If it is for something good, I'll be a rock's uncle.
It would be wise to let Gral know what's going on here. I do not think he would approve.
Gral was quite powerful, and when it came to his knowledge of the sea, none could compare. It never hurts to have a fellow like that on your side.
Some fresh, bloody naga meat may just lure him out.