You take your boat to the out coasts of the Pacific Ocean, where you would find the Cecaelia Dildo deep in a shipwreck. As soon as you arrive to the middle of the ocean, you put on your scuba gear, and take a look at the map you purchased at the Magic Shop. The dildo was at the very bottom of the sunken shipwreck.
You dive into the water, as you breathe through the snorkel, and locate the dildo, standing near what was left of the brig of the ship. As you swim closer to it, you find that the dildo was bronze, and in the shape of a penis, wrapped around two octopus tentacles. After grabbing the dildo, you bring it back to the boat with you, after taking off the scuba gear. You place the dildo on your desk, and call the museum owner telling him about the dildo you found, and you rest in the boat, before making the trip back.