Irving Reef


Irving Reef is a coral reef in the Spratly Islands, South China Sea. It is occupied by the Philippines as part of the Kalayaan Islands, and is also claimed by the People's Republic of China, the Republic of China and Vietnam.
The reef is southwest of West York Island. It is in length. There is a sand cay near the northern extremity.
The Filipino name Balagtas is named after the Filipino poet Francisco Balagtas.