Early in the game you'll be given the ability to dash to objects, a short time later you'll enter a room where the game will point out the corals and tell you how to dash to them. You'll want to go to the top where there are four corals and then dash between them, back and forth. Once you dash across them, turn the camera to face the one behind you and dash back across. Repeat. You can do this anywhere where corals are, this is just the first area it is possible.
I made the video below as a reference.
A second area I've encountered where this is possible is when you reach the point where two corals have parasites on them. Shoot them, then dash back and forth across those. I'm sure there are many others places in the game it is possible.