Quintana Roo, Mexico's last wilderness frontier on the Caribbean side of the Yucatan peninsula is sparsely populated and contains some of the region's most breathtaking white-sand beaches, tropical forests, and vine-covered Mayan ruins. Quintana Roo's 100 miles of Caribbean coastline, stretching from Cancun to the archaeological site of Tulum, is the state's fastest growing region. Tropical parks, snorkeling havens, and hotels dot this corridor called the Riviera Maya. Perfect for snorkeling, scuba diving, fishing or simply enjoying the Caribbean scenery, the area is peppered with nature parks and hotels, most of which are set on the beach about a half mile from the road, and hidden behind dense tropical vegetation.