Endless Ocean: Blue World

The story of Adventures of the Deep begins in the fictional Paoul Republic, where the player (who may choose either a male or female character), currently studying folklore at university, takes a break to find out more about the "Song of Dragons" and becomes part of the R&R Diving Service, whose aims range from collecting lost cargo to taking photographs of rare species of fish. The plot centers around a woman called Océane Rouvier, whose grandfather, Jean-Eric Rouvier, is the head of the service, and who will serve as the player's diving partner through the course of the game. Océane lives with her grandfather following the death of her father, Matthieu, who founded the R&R Diving Service alongside Jean-Eric and who was investigating the existence of the Song of Dragons before his death.

Blue World features improved graphics, larger explorable areas than the previous game, and allows players to travel to six different diving spots around the globe, including new polar and river locations.

The ability to dive with a dolphin as a companion returns from the first game, and players will now also be able to ride them to move quickly through the water. Players can also sell salvaged treasure for money that can be used to buy items to decorate their private reef and aquarium. Potentially dangerous creatures such as sharks and crocodiles will now elicit a warning for players and may even attack them; players will be able to drive them off using a new tranquilizer-like tool called the Pulsar which calms them down. The Pulsar can also be used to heal any creatures the player finds that are unwell.

Source: Wikipedia, "http://en.wikipedia.org/wiki/Endless_Ocean_2:_Adventures_of_the_Deep," available under the CC-BY-SA License.

From the back of the NA case

"Dive into an endless adventure beneath the waves!

Explore exotic locations, interact with over 300 species of aquatic life, and search for sunken treasure across the globe!"