Aquanaut - Episode 5: Call outs for the police and Lifeboat, and a rough time on research ship Jayne.

Another diverse, and at times rather grim, collection of tales in this episode: starting with the chance discovery of an 18th Century shipwreck off Mullion Island.  Then two tales of searching for and recovering dead bodies from the water, a drowned fisherman, lost at Coverack, and diving in a flooded quarry for the police.
Plus: a rough time diving for the research ship Jayne.

Content warning: This episode contains descriptions of decaying corpses in the sea.