Bluehole is a natural phenomenon characterized by a deep, circular hole in the ocean or a lake, often filled with water. These formations are typically found in tropical regions and are known for their striking blue color, which results from the depth and clarity of the water. Blueholes can be popular spots for diving and snorkeling due to their unique underwater ecosystems. One of the most famous blueholes is the Great Blue Hole in Belize, which is part of the Belize Barrier Reef. This UNESCO World Heritage site attracts divers from around the world, offering a glimpse of diverse marine life and stunning geological formations.