Originally posted by Capo de La Cosa Nostra:
Look like its tail is coming from the boat.
Unconventional anchor, I say.
Boat that size could never use an anchor like that. It would sink or dramatically impair its crusing ability.
My guess, it's an Oarfish. They can grow to be 17 meters in length, and the water there looks prime for one. They are rarely seen alive though. (They float to the surface when they die) Could also be a "monster sea snake". They are rumored to be pre-historic and dino-like too, like 'Ness". Who knows.
The Doc