These images were done using frozen carbonated drink cubes that were dropped in water. It was impossible to get the bubbles in perfect focus because the shots are taken through the glass, but I really like the effect. I did a small drop of Teal food coloring in the water to give it a frozen ocean look, and caverns inside the "glaciers".
Nikon D7100, 85 mm Meike macro lens, manual focus, tripod, remote shutter, light box, f/2.8, 1/250 sec.
Nikon D7100, 85 mm Meike macro lens, manual focus, tripod, remote shutter, light box, f/2.8, 1/250 sec.