Minecraft wiki entry for Tips_and_tricks, associated text: Buckets of lava can also do the second trick if the player has fire resistance potions, but it might be harder if the fall distance is too short or a lot of flammable structures or blocks are nearby. A good way is to drink a 3-minute fire resistance potion before jumping. This trick is good for the nether since water dries immediately when placed and the nether is filled with lots of high ledges and ridges. You might not want to do this near your base.