Accomplish the indicated achievement to get the corresponding number of Gamerscore points:

Guppy (5 points): Take a 3 star photo of any creature in Coral Reef.
Old Salt (10 points): Find and take a photo of Cap'n Lobster.
Depth Explorer (10 points): Take a 3 Star photo of the Angler Fish.
Living Dinosaur (15 points): Take a photo of the Coelacanth.
Blast Off (10 points): Take a photo of the Rocket Squid in flight.
By the Gods (10 points): Take a photo of Poseidon’s Trident.
Alvin (10 points): Take a photo of the Aquabot Explorer.
Nostradamus (10 points): Take a photo of the Mystical Moai Head.
Shell Collector (30 points): Find all of the hidden Collectible Shells in the game.
Crypto Zoologist (30 points): Find all of the Special Items in the game.
Paparazzi (30 points): Fill your Favorites Photo Log with at least 50 photos.
Underwater Adventurer (30 points): Unlock all levels.