Assassin's Creed IV: Black Flag Will Have Underwater Gameplay!

It has been revealed that the upcoming game in the Assassin's Creed series (Assassin's Creed IV: Black Flag) will have underwater gameplay elements! While swimming underwater, the player is vulnerable to predators such as sharks, eels, stingrays. Since the game is set in the old times when there were pirates and stuff, the player doesn't have an oxygen tank or mask. There will be items called air pockets and air barrels which the ship crew passes to you. You need to pop your head into the barrel whenever you run out of breath. The player can collect treasure and upgrades for his ship while swimming underwater. There will also be secret passages and ways to smugglers' caves which the player can find underwater. You can get into the cave, kill some bad guys and have the cave's wealth for yourself.
Assassin's Creed IV: Black Flag will release in North American countries on October 29th and Europe on November 1st. I am so excited!