Are there a lot of sharks close to islands?

It is generally true that there are more sharks close to islands. This is because islands often have rich marine ecosystems that support large populations of fish, which in turn attract sharks as predators. Additionally, islands often have deep waters close to shore, which sharks prefer for hunting. Some islands are also located near major migration routes for sharks, which can increase their numbers in the area. However, it is important to note that not all islands have high shark populations and the actual number of sharks in a given area can vary significantly depending on various factors such as the island's location, habitat, and human activities.