Cancun and the Mayan Riviera are home to the most amazing ecological parks in the world. There are very few places on earth where can you find the richness and diversity that nature has freely provided here.   Xel-Ha is known worldwide as the largest natural aquarium and it offers an innovative All Inclusive Program. Xel-Ha means, in the language of the Maya, ''Where the water is born''.   Xcaret is closer to Playa del Carmen, in the heart of the Riviera Maya, and it's without a doubt another of the most famous eco-archaeological parks in the world.