Marine sanctuaries are protected areas in oceans and coastal regions designed to conserve marine ecosystems and biodiversity. These areas help safeguard habitats for various species, including fish, corals, and marine mammals, while also promoting sustainable fishing practices and tourism. In addition to preserving wildlife, marine sanctuaries often serve as research sites for scientists studying ocean health and climate change. They can also provide educational opportunities for the public, raising awareness about the importance of protecting our oceans and the role of organizations like the National Oceanic and Atmospheric Administration (NOAA) in managing these vital resources.