If you read the description you'd see that it's not 😉 And if you'd watched the video you'd see that it's not full of car wrecks and dead animals. And that the water is not the same colour as in Buxton.
This is Llangollen slate quarry. I dived here late 70s before I left for Australia. Back then there were some fish, not many but there were some. Clearish five but cold.
sorry but this mermaid is not holding her breath if you notice her hand when she is coming down she is breathing in air from her hand, she is just not making it so obvious