Depth Warning

You can sense when a ship you are on comes into or near shallow water, reefs, shoals, or similar obstacles. You can focus the spell on the ship’s bow, or you may select a focus point directly in front of the ship at any distance up to the spell’s maximum range. When casting, you also set a desired warning depth up to 100 ft. deep. Any time thereafter that a Huge or larger object or creature (including the seafloor) is within your depth warning, a magical voice sounds in the caster’s ear stating its size, and depth. The depth warning is repeated once a round, ceasing if the obstacle is passed, the creature moves out of the ship’s path, and so on. The depth warning remains quiet thereafter until a new obstacle, barrier, or creature of sufficient size is detected within the ship’s path.