Guys, this is how to get a horse through a TWO BY ONE tunnel! If people want to dig it out, they can! Please stop with the rude comments and maybe even give some constructive ideas to make it easier instead!
1. Some people have a lot of glowstone. 2. You can do that, but the glowstone makes a good x-ray. 3. I searched forums and youtube for it, but found nothing.
This is for a 2X1 tunnel. Yes, you can make the tunnel larger, but this is how to do it without making the tunnel larger. And some people collect stacks of glowstone. Thanks for the suggestions, though.