Minecraft wiki entry for Best_biomes_for_homes, associated text: Flooded — Due to the player's dampened speed in water, it can be difficult to navigate at speeds that you'd get on more land-based biomes. This, in turn, means that escaping dangerous situations and monsters will be harder. It is also difficult to build large farms or structures. Mobs that die in sunlight can survive if they are within the water. Skeletons can shoot the player in the safety of bodies of water while zombies may sink and become drowned.