Off the coast of Busuanga island, Philippines, lie several ships sunk by American pilots during WWII. Irako is the deepest, and most dangerous to penetrate; which makes her the most exciting. It gets dark 42 metres below the surface.
This dive shows the transmission room. With a maximum bottom time of around 18 minutes, it is impossible to see the whole vessel in less than 10 dives. The transmission room, also accessible via the propellor shafts, is a good start.