After messing around on McInally Island for a while, you've likely realised that some puzzles and items must be used or solved elsewhere.
Time to set sail.
Unlike normal walkthroughs, in Nice Game Hints you can select just the puzzle you want hints for. Here are listed the puzzles for "The High Seas" in Cleo - A Pirate's Tale. The guide you choose only contains information about that puzzle, reducing possible spoilers for other puzzles.