Like you can see on video IF you'll soar to one block height room or something else and above you are leaves then if you click SHIFT you can see caves, mines, but if you will soar near "fill blocks" you'll stuck in it (but you can click space and exit, so that is good I think)

https://www.youtube.com/watch?v=Kk0MSFD6rrg&feature=youtu.be