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https://edition.cnn.com/travel/article/roman-coins-spain-divers-scli-intl-scn/index.html

now where did I leave my wetsuit.....

The idea that they were hidden underwater seems a bit odd.

it does. maybe was only supposed to be there for a day or 2

I wasn't clear whether they were originally deposited underwater or whether conditions had changed.

Quote from: Duncan Head on September 24, 2021, 11:05:25 AM
I wasn't clear whether they were originally deposited underwater or whether conditions had changed.

Yes, I thought that - rising sea levels and so on.  Though they also say they found other nautical things like anchors (which are hard to date, so could be later, I suppose).

Sea level change or erosion did spring to mind. I had a brief look online, but I don't know how the sea level has changed here compared to the E. Med where there is a lot more variation - uplift and subsidence.
Let down and marked like a lobster pot? Or washed from swallower water?
I'd be surprised if there would be any difference in the find if it had come from a small boat which had sunk or whatever. They could have been rowing over to Portichol for relative safety if this cache is related to the invasions.

Quote from: Erpingham on September 24, 2021, 11:22:28 AM

Quote from: Duncan Head on September 24, 2021, 11:05:25 AM
I wasn't clear whether they were originally deposited underwater or whether conditions had changed.

Yes, I thought that - rising sea levels and so on.  Though they also say they found other nautical things like anchors (which are hard to date, so could be later, I suppose).

I don't think the anchors etc. are particularly associated with the find, just that the bay has all sorts of things cropping up. https://www.javea.com/en/xabia-trabaja-en-la-creacion-de-un-museo-submarino-en-lilla-del-portitxol/ talks of a hundred anchors being found ranging from Punic to Andalusian.
There is a comment at the end that they are going to look for shipwrecks nearby. Whether this is to look for a boat that the chest may have come from or whether they are just doing a survey of the area isn't said.