Attack of the Giant Squids

Ahoy! As you set sail across the sea, giant squids attack you from the port side. You can knock them back. However, it is essential that you plug all the holes on the deck! As long as don't fall asleep, you can relax as the water pressure in a semi-filled hull and springy wooden planks make a peculiar arrangement of music...

To plug a hole where the water is coming out, tap on the hole.