bintananth
behind a desk
You might be thinking of this:The Kraken.
Kraken - Wikipedia
For a while now I have come to the conclusion that there may be a species of Giant Octopus in the worlds oceans. A creature that might be 40 to 50ft in length. I would explain many of the old legends about Giant Octopus attack ships over the centuries. What do you guys think?
The females actually do get up to about 40+ft.