Endless Ocean 2 is the sequel to Endless Ocean 1. Shocking, we know.
Players can dive in the big blue, explore shipwrecks and escape sharks. Loot you find can be sold so you can decorate your reef to attract more fish. That's much better than what I usually do. Saying "Here fishy fishy" doesn't really work.
It's possible to dive with friends vis Wi-Fi and use the microphone to chatter back and forth. Expect the game out sometime next year.
Screens on the link.