UPDATE: This achievement may be glitched. A few others have complained that it hasn't unlocked after beating all of the requirements below.
To get this achievement, you need to:
1. Beat all levels in the game
2. Get Gold Masks for all levels of the game
3. Beat all Eco Missions in the game
4. Beat the Flying Dutchman levels
5. Get Gold helmets for all Flying Dutchman levels
6. Beat the Cousteau Missions for all levels in the Flying Dutchman.
Since 1, 2, and 3 are covered by other achievements, I'll focus on the Cousteau Missions here.
I've taken pictures of all of my winning level configurations, but that may not directly equate to beating the levels for you. I found that the way things fall, the monkey's effect on the sticks, and the final outcome of the level are non-deterministic. I would occasionally beat a level without changing anything - just restarting the action seemed to make it work. So, take the pictures as a starting point, and adjust them as needed to get to the winning combo.
Some levels needed two pictures, so you will see some a/b pictures. a is generally the top of the level, and b is the bottom.
http://tikitowers.4shared.com/Here are the targets for each of the levels in The Diving Dutchman:
The Diving Dutchman
1-1 - Dive! Dive! Dive! (10)
1-2 - Silent Service (6)
1-3 - Animal Magnetism (2)
2-1 - Electric Boogie (4)
2-2 - The Grate Escape (8)
2-3 - U-Tube (10)
3-1 - Levitation Station (4)
3-2 - Fantastic Voyage (8)
3-3 - The Final Final Challenge (6)