Minecraft glitch

Dig a hole 3 squares deep, 2 squares wide.
Stand in the middle of the hole so you're touching both squares of the floor of the hole you made.
Use a gravity-affected block (I.E. sand or gravel) and drop two blocks above you.
Walk slightly into the stacked up sand/gravel that you SHOULD be standing half way in and look around. You will get a view of all the cave systems within the viewing distance that you have set in your map.

 

thought this was patched allready

 

Nope, still works bro!

 

Is it patched as of 1.4_01?

 

I think it still works, just watched a Youtube video on it recently...If you want to see cave systems for the whole world though, just download Minutor.