The Isla Verde Reef is located in Barrio Cangrejo Arriba in Carolina, in front of Punta El Medio, since the 18th century this island is called Isla Verde. This reef is part of a line of outer reefs that go from Puerta de Tierra, Las Siete Marías to the Boca de Cangrejos Reef. This line at some points has reefs that approach the shore such as Escambrón, Punta las Marías and Isla Verde.
Thanks to this line of reefs, we have the sandy beaches in Condado, Ocean Park and Isla Verde since these reefs are the first natural defense that the coast has from the waves. To protect a natural space, we must know its history and that is why we go to the archives in search of documents and photos that could help us understand what this place was like before we arrived. The 1937 photos show us a more extensive reef and an island almost double what we currently have, with a path that goes out of the water from Punta El Medio to the island. The history of the Isla Verde Reef can be divided into a before and after the International Airport. The mouth of Boca de Cangrejos is a fundamental element in the development and health of the Isla Verde Reef.
An urban reef has enormous impacts, eroded, urbanized shorelines, altered bodies of water, dredging, and sanitary water runoff discharging onto the beach. In this precisely lies the value of this reef, impacted corals like few that still survive develop a level of resilience worthy of study and with great possibility of restoration.