Carysfort Reef may seem an obscure scrap of ocean floor to merit its own special watch, but this ecosystem, part of the Florida Keys National Marine Sanctuary, has become a bellwether for ocean health at large. The Florida Reef, of which Carysfort is a part, is the third largest barrier reef in the world and the only one in the continental United States. It has seen decades of degradation and mass coral die-off from human causes, ranging from sewage runoff from the Keys themselves, agricultural nutrients from American coastal states, and the rising ocean temperatures being seen worldwide. The Coral Restoration Foundation, a Key Largo-based nonprofit, has been focusing efforts on repopulating reefs of the Keys by growing and replanting staghorn, elkhorn, and boulder corals, with great success. Oris has been working with the CRF since 2014 and the Carysfort Reef Limited Edition carries on that support.