Talk:Obsidian/@comment-117.120.16.133-20110622223537

Although farms are impressive, duplicating the lava takes forever and is pretty fiddly. I really enjoyed another method, which is to simply dig away at all the underground lakes in your cave system and let them flood your tunnels all the way down. Bonus points for shifting larger bodies of water =D It doesn't actually take very long when you've got a Nightmare or Molten pickaxe, and a balloon and/or cloud in a bottle for mobility. It was insanely cool to see just how powerful I was, that I could just run through these previously challenging caves and control massive amounts of water. Once you get to the lava-filled areas it's a piece of cake to get obsidian. Just don't fall into the lava a moment before the top of it turns into obsidian like I did once... ;)