Mokoliʻi is a really cool island in Hawaii, also known as Chinaman's Hat because it looks like an old-fashioned hat that people used to wear a long time ago. It's out in the ocean and you have to take a boat to get to it. Once you're there, you can climb up to the top and see all around you. It's like being on top of the world, but much, much smaller. People like to go there to take pictures, explore, and play on the beach. It's like having your own little secret island, but lots of people know about it and love to visit.