In order to look into the underground world of Minecraft PE does not have to go down there in person. It is enough to install Xray Hack For Multiplayer server & Solo game.
How does it Work?
This mod is a hybrid of two other very popular mods for Minecraft PE. The first allows you to see at night, and the second is to browse through the texture. The author just put them together and recalibrating to work correctly on any device.
Install Xray Hack Mod
iOS / Windows 10
Download this Texture Pack
Open the file after download: Resource.mcpack
If you have an Android, then put file ".mcpack" to "Resource_packs", which is located at the following path: games/com.mojang/