Long Path

Path that is long and flammable. Took 3 hours to make, so it's not that reputable but it is kind of fun to mess around on. Goes from y0 to y255.

Fire doesn't work on it that well. You could probably install a third party mod to allow infinite fire spread. I tried for 10 minutes to attempt to get it in vanilla, but I couldn't figure it out, and I was sick of working on the path by that point.

Use the "Open to LAN" feature in the pause menu to enable cheats.

Have fun.