Ray: A Life Underwater (2011)

Like a modern-day pirate, 75--year-old Ray Ives has been scouring the seabed for treasure his whole life. The former commercial diver has plundered the deep for over fifty years, bringing to the surface anything that glittered -- even gold. In a shipping container near the water, Ray tends his museum of cannon, bottles, bells, swords, portholes and diving gear.

Unfortunately the movie Ray: A Life Underwater is not yet available on HBO Max.