Mona Island is a small, uninhabited island located in the Caribbean Sea, part of the Puerto Rico archipelago. It covers an area of approximately 20 square miles and is known for its unique limestone formations, diverse ecosystems, and rich wildlife. The island is a protected nature reserve, making it a significant site for conservation efforts. The island is accessible only by boat or helicopter and is popular for activities such as snorkeling, diving, and birdwatching. Its remote location and pristine environment attract nature enthusiasts and researchers interested in studying its flora and fauna, including several endemic species.