05Off hours
Freediving

0 m
Surface. One slow breath in, and the noise stays up here.
5 m
Red is the first color the water takes away. From here down, everything slowly turns blue.
10 m
The pressure has doubled since the surface. The line is the only thing to watch.
15 m
Around this depth, a freediver often stops floating up and starts to sink.
20 m
The pressure is three times what it is at the surface.

