Coral reefs seem to be having a bad century, with global bleaching events and the Great Barrier Reef fading away before our eyes.

But there’s a bright spot, folks! Actually, there are 15 of them, according to a new study published in Nature.

A group of marine researchers has identified places where reef ecosystems are thriving despite environmental and human pressures. These “bright spots” are rays of hope for future conservation efforts, which may use them to apply better practices to less lucky places.