Mexico has a diverse geography and is known for its archaeological sites and natural attractions. It is a major Spanish-speaking country located in North America with coastlines on the Pacific Ocean and Gulf of Mexico. Some of its most famous tourist destinations include the ancient Mayan city of Chichen Itza, known for its El Castillo pyramid and ball court, the Monarch Butterfly Biosphere Reserve where millions of butterflies cluster annually, the protected wetlands of Sian Ka'an Biosphere Reserve with its diverse wildlife, the snorkeling spot of Xel-Ha park located near Tulum, and the Mayan ruins of Tulum situated dramatically on a cliff overlooking the Caribbean sea.