Here is the full list of all 16 Lake Ridden achievements.
Unlocked the puzzle box in the lower garden.
Unlocked the puzzle box in the upper garden.
Unlocked the puzzle box in the attic.
Unlocked the puzzle box in the courtyard.
Unlocked the puzzle box in the school.
Unlocked the puzzle box in the laundry.
Unlocked the puzzle box in the estate.
Unlocked the puzzle box in the basement.
Unlocked the puzzle box on the island.
Found the way out from the lower garden.
Found the glowing thing in the attic.
Got out from the root cellar safely.
Repaired the canon and found the glowing thing.
Solved the puzzle on the island and found the tube.
Solved the second puzzle out on the island and found the ring.
Completed the game.