Three small, flat, sandy, coralline islands, the largest of which is Siyal El Kabir. Coral reefs and shallow waters surround the islands.
See Box for key species. Five bird species have been found breeding: Pandion haliaetus, Larus leucophthalmus, Larus hemprichii, Sterna caspia and Sterna repressa.
Non-bird biodiversity: Reptiles: Eretmochelys imbricata (CR) and Chelonia mydas (EN) breed in significant numbers on Siyal El Kabir island. Dermochelys coriacea (EN) might also breed locally.
BirdLife International (2022) Important Bird Areas factsheet: Siyal islands. Downloaded from http://www.birdlife.org on 23/01/2022.