While watching over the sea, you spot a large red X on a distant island. Treasure! Arrh!!
But watch out, the waters are infested with sharks, bombs, and other obstacles. You'll have to launch your dingy from a cannon to try to make it across the water to the island in one run!
A silly distance game, where you skid out across the water, collecting gold, upgrading your ship, and trying to reach that treasure. Yaarh!