We are playing (4 of us -2 pcs and 2 ipads) in survival. I'd like to find the stronghold. I made a creative version to throw enderpearls. They kept saying they found it, but when we dug straight down there was nothing.
If you're in creative mode (or survival with Cheats on) you can use the command: /locate stronghold It will give you the coordinates* of the nearest one. Then you can teleport yourself there or use an add-on to get your current coordinates and go on an expedition.
*It doesn't give you the 'y' coordinate. If you're teleporting, try to be prepared for arrival. Usually I just teleport to height of 70 for such things.