Freshwater crocodile, Crocodylus johnstoni

This image depicts an unusual role reversal. The small freshwater crocodiles that inhabit most public swimming holes in the Top End spend their days under the surface, watching human swimmers obliviously floating and splashing – here the tables have turned.

Batchelor, Northern Territory

Olympus OMD EM–1 Mk II, Olympus Pro 7–14mm f2.8 12mm, 1/80, f/4.5, ISO 200, two Sea & Sea YS-D2 strobes, manual flash output, handheld, Nauticam underwater camera housing

by Etienne Littlefair, Northern Territory