The first marine sanctuary in India, encompassing coral reefs, mollusca, dolphins, tortoises, and various species of sea birds, has been established in the Gulf of Kachch.

The Gulf of Kachch, located in the western part of India in the state of Gujarat, is home to a diverse marine ecosystem. It is known for its rich biodiversity, including coral reefs, mangroves, seagrass beds, and various marine species.

To protect and conserve this unique marine environment, the Indian government established the Marine National Park in the Gulf of Kachch in 1980. It was the first marine sanctuary in India and was later renamed as the "Gulf of Kachch Marine National Park and Sanctuary."

The Gulf of Kachch Marine National Park and Sanctuary is spread across an area of approximately 162 square kilometers and comprises coral reefs, mangrove forests, mudflats, and various other habitats. It serves as a vital breeding and feeding ground for marine species, including endangered and rare species such as the dugong (sea cow), green sea turtles, and dolphins.

The establishment of the marine sanctuary aims to protect and preserve the marine biodiversity of the Gulf of Kachch and promote sustainable tourism and research activities in the region.