Start the game.
Find an abandoned house.
Swim to the first abandoned village.
Find the stuck ship and swim up to it.
Swim to the end of level 1.
Watch until the end of the dream on the 2nd level.
Swim to the underlying support of the Ferris wheel, and make sure that you can not swim here.
Swim half way through the Park.
Swim to the end of level 3.
Swim to the last abandoned village.
Find the stuck ship.
Swim to the end of level 4.
Complete the game.