Cozumel is an island in the Caribbean Sea off the eastern coast of Mexico's Yucatán Peninsula, opposite Playa del Carmen, and close to the Yucatán Channel. The island is covered with mangrove forest which has many endemic animal species. Cozumel is a flat island based on limestone, resulting in a karst topography. There are a number of visitors to the island's balnearios, scuba diving, and snorkeling. The main town on the island is San Miguel de Cozumel. The islands belongs to Cozumel Municipality of the state of Quintana Roo, Mexico.

Key West is an island in the Straits of Florida on the North American continent at the southernmost tip of the Florida Keys. It is considered the southernmost city in the continental United States. The city also occupies nearby islands and portions of nearby islands. It’s popularly known for its stunning beaches, coral reefs – destinations for diving and snorkeling.

Miami is a major city located on the Atlantic coast in southeastern Florida and the county seat of Miami-Dade County, the most populous county in Florida and the eighth-most populous county in the United States with a population of 2,500,625. The 42nd largest city in the United States, with a population of 433,136, it is the principal, central, and most populous city of the South {Florida} metropolitan area, the most populous metropolis in the Southeastern United States. According to the US Census Bureau, Miami's metro area is the seventh most populous in the United States, with an estimated population of 5,547,051 in 2009. 

The Riviera Maya is a stretch of Caribbean coastline on Mexico’s northeastern Yucatán Peninsula. The Riviera Maya is a tourism and resort district in Mexico. It straddles the coastal Highway 307 along the Caribbean coastline of the state of Quintana Roo, located on the eastern portion of the Yucatán Peninsula. Historically started at the city of Playa del Carmen and ended at the village of Tulum, the Riviera Maya was originally called the "Cancun–Tulum corridor", but in 1999 it was renamed as the Riviera Maya with the aid of Lic.  The Riviera Maya is famous for its large scale all-inclusive resorts and a historical tourism base of smaller boutique hotels as well as the many fine-dining restaurants available along the highway 307 and on or near the beaches. Luxury travel entities have been instrumental in increasing luxury villa rentals and yacht charters in the area however these only represent a small fraction of the total tourism accommodation available. A major attraction throughout the Riviera Maya are coastal and reef aquatic activities dependent on the coastal water and the Mesoamerican Barrier Reef System (also known as the Belize Barrier Reef) which begins near Cancun and continues along the whole length of the Riviera Maya continuing southward to Guatemala. This barrier reef system is the second longest in the world. Activities at the most visited locations include jet-skiing, snorkeling, scuba diving, swimming in cenotes, swimming with dolphins, zip-lining, horse riding, sailing, and guided jungle tours.