Lake's corpse

The lake's corpse is an obstacle that appears in the lake in ObsCure II. Its appearance is random and location in the lake, so you may not see it on all playthroughs.

It seems to spawn more often on the section when you're playing as Sven and Amy during the boat ride.

One will notice it has spawned when the boat suddenly stops and you have to change direction, only to find that this corpse was preventing the boat from advancing.

Judging from their location and their missing limbs and chunks of flesh, they were probably victims of the Harpies.