A marine reserve is a type of marine protected area. The protection is for seas, oceans, estuaries or large lakes. Laws protect the plants and animals in a reserve. The area is kept safe for conservation and to provide special opportunities for study or research.
The Ningaloo Reef in Australia is an example of a marine reserve. This reef includes six of the seven types of sea turtles in the world. Another example is Hol Chan Marine Reserve in Belize. Hol Chan includes coral reefs and a mangrove forest.