Altun Ha /ɑːlˈtuːn hɑː/ is the name given to the ruins of an ancient Mayan city in Belize, located in the Belize District about 50 kilometres (31 mi) north of Belize City and about 10 kilometres (6.2 mi) west of the shore of the Caribbean Sea. The site covers an area of about 8 square kilometres (3.1 sq mi).