You don't seem the type to mind getting wet and honestly I don't believe anything here is that much of a danger to you.

[Which is why Tyki is just shifting the oars away from the creature instead of actually do anything about it.

And it seems the creature's arm is longer than Tyki's so it will reach up higher though it has to get up close to the surface of the water to do so. It bumps their little boat hard, but the center of creature becomes visible. And it looks like it is covered in barnacles? Bone? Hard to tell.]