Mojang AB 
Minecraft Guide to Ocean Survival [EPUB ebook] 

Minecraft’s oceans are teeming with colourful life and rare treasures, but new dangers lurk beneath the surface of the water and survival can prove difficult for even the bravest adventurer.The official Minecraft Guide to Ocean Survival will teach you how to breathe underwater, find valuable sunken loot and fight off guardians and other menacing mobs of the deep.With insider info and tips from the experts at Mojang, this is the definitive guide to underwater survival for aquatic adventurers.