Clarity Mod aims to reduce the density of underwater fog. Please note that it just decreases the density, so it still appears that you’re underwater. This function will help you see everything underwater much easier.
As you know, there is not every pack allowing people to breathe and see underwater, or have a potion effect on at all times, because the particles can get annoying. That’s why this mod is effective, it will reduce fog and enable players to explore underwater without having to craft the potions themselves whenever they do.
How to install:
For Minecraft 1.10.2
For Minecraft 1.11.2