The Costa Maya is in the Quintana Roo state of Mexico. The Costa Maya is part of the Mexican Caribbean coast created and marketed by the state of Quintana Roo to tie the southern part of the state with the more successful Cancun and Riviera Maya in the North. The "Costa Maya" is also a marketing term used to refer to a cruise ship destination in the town of Mahahual.
The Costa Maya extends from Xcalak in the South to the Southern Border of the Sian Ka'an in the north, although many people include the southern part of the Sian Ka'an to Punta Herrera when they talk about the Costa Maya because you can only access it via the Coast Road in The Costa Maya.
Cruise Ships occasionally visit a small port (recently rebuilt after a major hurricane) with a large pier on the open Caribbean shore. A growing cluster of shops offer souvenirs from the area, as well as bars and swimming pools for visitors.
Scuba diving is a primary attraction.