Quote Originally Posted by Sigurd View Post
Yeah... very near a nether fortress. The portal hangs in the air.. just out of reach for you to attach blocks to it... I had to swim to the bottom of the ocean and start stacking blocks...
Yeah, that's the old mushroom island portal. This post has a screenshot of the world map at the time that place existed, the mushroom island is partially visible under some of the red scribbles in the bottom right corner. That looks like approximately the same location as the coordinates you gave.