Gary Cobb surfaces during a dive at La Balsa Park, north of Brisbane. When he’s not looking for nudibranchs, Cobb is often hiking or rock climbing. Michael Aw Cobb dives into the river near a ...

Equipped with expansive windows and powerful lights, the submarine can dive to depths of 650 feet ... square feet of interior ...

“Vessel prep” had been completed at dawn, so after a pre-dive briefing, I climbed a ladder to the top hatch of the sub, took off my boots and clambered into the tube, which was sheathed in ...