I didn't need to think too hard to come up with what I could find in that particular place. The whirlwinds make it quite obvious.
Air elementals were living in that place. I was sure about it even before closing the distance. I confirmed my thoughts even before landing, as I was attacked midair by invisible winds, which put me off my trajectory in quite a violent way. I was sent spinning to crash into the ground, but I managed to get a hold of myself. The skill to control air was crucial to achieving that, as I took over the elementals, and was able to safely land shortly after.
The area was completely flat with a lot of dust being picked up by the strong winds. Even small pebbles were flying around.
Thanks to this I was able to finally see the elementals. Not directly, but all the garbage made it possible to distinguish one from the other.