Mexico offers divers some of the most varied and abundant dive sites as anywhere in the world. From the Pacific Ocean, to the Gulf of Mexico, Caribbean Sea, and Sea of Cortez, as well as in rivers, cenotes, and lakes; Mexico has something for every type of diving preference. Surprisingly, the country is not as popular as others along the Pacific Ocean, but it is not any less spectacular.
Technical divers can find an amazing amount of yet to be explored caves on the Yucatan Peninsula. These caves connect cenotes, or underwater sink-holes, which are found in the jungle and can lead out through an extensive underground cave system to the sea. Casual divers will enjoy the tropical warm and clear blue waters in the Golf of Mexico and the Caribbean Sea, where the stunning coral reefs of the Parque Marino Nacional Arrecifes de Cozumel are apart of the world's second largest reef system and support a huge variety of species.
On the western coast of the country in the Sea of Cortez, located between the Baja Peninsula and mainland Mexico; whale sightings are frequent, and pelagic fish like whale sharks, manta rays, and many other different species of sharks including hammerheads are found in the protected waters. Further out to sea off of the Pacific Ocean coast, liveaboards set out on trips from Cabo San Lucas to the Archipelago of Revillagigedo, or Socorro Islands, for minimum 9 day trips to dive with huge schools of hammerheads, white tips, silver tips, and silky sharks, oceanic manta rays, and sometimes with whale sightings. Further north still in the Pacific Ocean is Guadalupe Island, where the best cage diving with Great White sharks happens during late summer. Here divers can see these majestic animals with crystal clear visibility for more than 30 meters.
The climate varies dramatically across Mexico's vast landscape. In the northernmost area of the Baja Peninsula the climate is Mediterranean, whereas the climate is arid on the other side of the peninsula, facing the Sea of Cortez. As you go south on the Baja Peninsula, the climate changes to become a subtropical and semi-arid climate, until you reach Cabo, which has a unique tropical desert climate. The terrain of the country also varies greatly from high, rugged mountains to low coastal plains and up to high plateaus down to temperate plains with grasslands. These great elevation changes combined with different weather patterns makes for amazing diversity.
The most interesting things to see in Mexico are the vast archaeological sites concentrated in the southern areas of the country. These ancient, mostly Mayan civilization remnants can be visited year round. The most famous being Chichen Itza, El TajÌn, Monte Alb·n, and Uxmal, all of which are UNESCO World Heritage Sites; and Teotihuacan, a huge site with several pyramids located nearby Mexico City.