It certainly is desolate out there, between Australia and Africa.
I've also wondered about ship traffic in that area. I of at lest 4 different web sites that track air traffic around the world.
It would be orders of magnitude easier to do the same for ship traffic, but have been unable to find a web site that offers that information. I assume commercial ships of all kinds are expected to report their position periodically for safety and security, if for no other reason.
Anyone know of a "shipping" version of "Flight Aware?"