Grand Piece Online is about acquiring the best ships and sailing across the ocean blue to unique destinations. It's hard to get from place to place when your boat is damaged, whether from fighting or sailing a little too close to land. Your ship won't sail nearly as fast with low HP, plus you risk sinking. So, here's how you can fix it back to its full potential.
Head to Marquan's Shop
To repair your boat, you're going to need some supplies. The NPC Marquan has a shop located on Beginner's Island that has everything you need. If you have your spawn set to a different island, that's okay. You should have a compass that will lead you straight back here whenever you need to.
Buy a hammer and wood planks
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Once you're at Marquan's Shop, you'll need to buy a hammer and wood planks. This means you're going to want some Peli, first. The hammer costs 100 Peli alone. A bundle of 15 planks costs 50 Peli. Depending on the damage and size of your ship, you may need more than 15. It's safe to say you're probably going to want at least 250 Peli saved up beforehand.
To purchase them, click on the item you want to buy. A little menu will pop up and ask if you wish to purchase them and how much it costs. You can choose Yes or No.