An archipelago is a group or chain of islands clustered together in a body of water. These islands can vary in size and are often formed through volcanic activity, erosion, or rising sea levels. Famous examples include the Hawaiian Islands and the Philippines, which are known for their diverse ecosystems and rich cultural heritage. Archipelagos can be found in oceans, seas, and lakes, and they play a significant role in biodiversity. They often serve as habitats for unique species and can be important for tourism and local economies. The study of archipelagos helps scientists understand geological processes and the impact of climate change on island ecosystems.