The Yin and the Yang
The logo represents many possibilities.  One possibility is that of man and shark
sharing the water, living in balance. The shark rising up from the depths, man
diving down exploring the depths.
Blue and Green
The Diver and the Shark
Blue representing the ocean, green representing land.   They can exist in balance, one
not dominating or polluting the other.
Man and Fear
Man can identify, work with, and live in balance with his fears.
About
Everything can and does exist in balance.  Every thing is a part of the whole.  When
we recognize this, there is no judgement or fear on a singular part, and every part is
now in harmony.