about this building and what it would have been when it was a functioning prison? prisoners were working in all positions. they were working in this building, they working in the mine, where they were — they were digging out the material. they were also working as the ones who were making the explosions to get the material off. so most probably, they are the reason why this quarry was floated. the limestone makes the water such a striking colour that some call it �*the blue lagoon�*. i think the most precious places here is the visibility. as you see today, we can see almost, like, five, six metres — four, for sure — and every time i go diving here, i see something new.