Cozumel Island, often simply called Cozumel, is a largely undeveloped Mexican island in the Caribbean Sea, located off the eastern coast of the Yucatán Peninsula, opposite Playa del Carmen. It's renowned globally as a premier destination for scuba diving, snorkeling and It's a very popular cruise ship port of call.

• Location: Situated in the Caribbean Sea, approximately 12 miles (19 km) off the coast of Playa del Carmen on the Yucatán Peninsula. It's about 51 miles (82 km) south of Cancún.
• Geography: It's Mexico's largest Caribbean island and its largest permanently inhabited island. The island is mostly flat, formed by limestone, and much of its interior is covered in scrubby tropical jungle and mangroves. It also features numerous cenotes (water-filled sinkholes).
• Marine Life & Reefs: Cozumel is famous for its crystal-clear, warm Caribbean waters and its spectacular coral reefs, which are part of the Mesoamerican Barrier Reef System, the second largest coral reef system in the world. This makes it a mecca for divers and snorkelers who come to explore the vibrant underwater ecosystems teeming with colorful fish, sea turtles, stingrays, and various coral formations.
• Main Town: The majority of the island's population lives in San Miguel de Cozumel, located on the west coast. This town serves as the main commercial center and offers a lively mix of local culture, shops, restaurants, and hotels.
• Tourism Focus: Tourism is the most developed sector on the island. It's a very popular cruise ship port of call, and visitors also arrive via international airport or ferry from Playa del Carmen.

• Beach Clubs: Relaxing on beautiful white-sand beaches like Playa Mia or Paradise Beach.
• Eco-Parks: Exploring natural parks like Chankanaab Adventure Beach Park (with a lagoon, botanical garden, and marine life) and Punta Sur Eco Beach Park (featuring a lighthouse, lagoon, and diverse wildlife including crocodiles and birds).
• Mayan History: Visiting the San Gervasio Archaeological Site, an ancient Mayan city dedicated to the goddess Ixchel.
• Water Sports: Deep-sea fishing, kayaking, parasailing, and jet skiing.
• Land Exploration: Renting jeeps or scooters to explore the island, including the "wild" east side with its more remote beaches.
• Cultural Experiences: Enjoying authentic Mexican cuisine, Chocolate Tour exploring local markets, and experiencing the island's vibrant nightlife and traditional festivals like the Cozumel Carnival.
• Biodiversity: The island encompasses diverse marine and terrestrial ecosystems, rich in amphibian and reptile species. It's home to several endemic species, including the critically endangered Cozumel raccoon.
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In essence, Cozumel Island is a Caribbean paradise in Mexico, celebrated for its exceptional underwater world and offering a mix of relaxation, adventure, and cultural immersion.