Take the diving suit from the locker on your left. Hang it on the hook. Click on the suit to go underwater. While being submerged, take two hoses (next to the ship's hatch). Click the button next to the hatch and return to the trawler. Connect both hoses and click on the faucet next to the diving suit, and then use the long hose on the suit itself. Open the lamp and take the candle.
Enter the room and throw the candle to the pot. Take the pot with wax and use the remote on Baby Goal to change her into Spunky Goal. Go outside and click on the bell three times. Use the pot with wax on the bend at the door. Place the impression in the diving helmet and ask Bozo to lower the dummy. Once you've completed all actions, click on the diving suit, and then, on the hatch.