This document discusses techniques for filming underwater 360 video. It describes the filmmaker's background in scuba diving and environmental filmmaking. It then covers the equipment, skills, and techniques needed to capture stable underwater 360 footage, including using a camera array, monopod, diver handheld, or DPV mount. It also discusses lighting considerations like using ambient light, lighting mounted on the array, or coordinated off-axis lighting. The document concludes with tips on distance, subject placement, shooting sequences, and emerging trends in underwater 360 video equipment and applications.