Stone coral

Stone coral: Just a stone coral in a bed of horn corals in shallow water. — Dunia Kecil, Wajil Batan, Rajat Empat, Indonesia, Nikon Coolpix 5400, Fischaugen-Vorsatz, March 15, 2005. Nikon E5400, 1/91 s, F/5.8, 24 mm, ISO 50, Tuesday, March 15, 2005 15:49:08