Books about deep sea exploration, submarines etc

[Exloony]

Hi everyone

I'm looking for reccomendations for either fiction or non fiction books about anything to do with oceans, deep sea exploration, submarines, mysteries of marine life etc.

I've been reading all sorts of books about outer space and space travel recently, so would like to now expand into the oceans! I realise I know so little about these topics, so any way to find out more would be great, even podcasts or children's books.

I read Our Wives Under the Sea recently, and I loved the descriptions although wasn't too keen on the story.

Thanks!

I think this sounds interesting The Mountain in the Sea by Ray Nayler
When pioneering marine biologist Dr. Ha Nguyen is offered the chance to travel to the remote Con Dao Archipelago to investigate a highly intelligent, dangerous octopus species, she doesn't pause long enough to look at the fine print. DIANIMA- a transnational tech corporation best known for its groundbreaking work in artificial intelligence - has purchased the islands, evacuated their population and sealed the archipelago off from the world so that Nguyen can focus on her research.
But the stakes are high: the octopuses hold the key to unprecedented breakthroughs in extrahuman intelligence and there are vast fortunes to be made by whoever can take advantage of their advancements. And no one has yet asked the octopuses what they think. And what they might do about it.

The Girl Who Broke the Sea by A Connors
After she gets kicked out of school for her destructive behaviour, Lily agrees to an unusual fresh start: going with her mum to live at Deephaven, an experimental deep-sea mining rig and research station located at the bottom of the ocean.
Lily instantly regrets her decision: claustrophobic and isolated, it's hardly her idea of home.
Turns out, Deephaven has problems of its own. The head scientist, they quickly learn, has disappeared - just as he was on the brink of a shocking discovery. In the darkness of the deep, something is stirring ... something dangerous.
And it's calling out to Lily.

Thank you for those! The Girl Who Broke the Sea sounds right up my alley.

Horse Under Water, by Len Deighton. 60s thriller 😎