Ewen Ponds are a network of three limestone sinkholes with exceptional water clarity allowing for amazing amounts of plant growth found nowhere else in the world. This protected habitat is home to the endangered pygmy perch and Glenelg spiny crayfish.

Ewen Ponds Conservation Park, Eight Mile Creek, South Australia

Olympus OMD EM1 Mk II, Panasonic Lumix G fisheye 8mm f/.5, 1/30, f/9, ISO 200, Two Sea and Sea YSD1 underwater strobes, Nauticam underwater housing and dome port

by Tanasit Tancharoen