There are depths of the sea where divers have to use special exotic mixes of gas because the pressure pushes gases into your bones and stuff. Divers going into and coming out of these areas have to do so very slowly. Look into saturation diving and barotrauma if this topic is interesting. But the gist is, if you're getting teleported anywhere in the ocean, not just the surface, you're screwed. You simply cannot go from normal air pressure, to depth pressure, back to normal air pressure that quickly and not have problems.

My intuition was a bit off, if seems. My point was that at a certain depth, the pressure will start wreaking havoc with your internals. But the free dive record seems to be 126 meters, so I obviously should have gone with a bigger number 😅