I made a texture pack where stone is now clear and you can use it to find caves and other things like that! I finds places where there is air and you can see through it. I made only the stone clear so you can play normally the rest of the time. I will add screenshots later, but I want to hear what you think first. I hope you like it and it works well for you.
Download here ==> http://www.mediafire.com/?98qhvzswro19k6a
Download here ==> http://www.mediafire.com/?98qhvzswro19k6a