Shark net seahorse

OUR IMPACT - Runner-up

I took this photo while scuba diving in about 5m of water outside the shark net off Manly Harbour. The nets are intended to provide a safe swimming area for swimmers, but at the same time provide shelter to a host of marine creatures, including this enigmatic White’s seahorse.

Manly Harbour, Sydney, New South Wales

Canon EOS 5D Mk III, Canon 16Ð35mm f2.8, 1/200, f20, ISO 200, two Inon Z-240 strobes, Hugyfot housing, handheld

by Michael Gallagher, London, United Kingdom