If I wanted to casually detect for treasure in the coastal shallows on tidal beach? For me I would detect The beaches along South Wales? Especially after storm season when most of sand and mud deposits are stripped from the beaches.
The Bristol channel and the River Severn has the second highest tidal range in the world after the Famous bay of Fundy. Having a long history with iron age, copper and bronze age. Roman Celtic. Viking. Norman, Welsh English, English civil war, Piracy and smuggling among thousands of shipwrecks mingled history into the sand mud and stones of the coast.
Not only that The UK has a reasonable laws in regards to antiquities. And after freezing your ass off at cold wet windswept beach ya can find a pub, beer and warm fire to examine your finds by. Hell if ya sick of detecting on the beaches just join the local Gwent metal detecting club. They have organized group hunts with let you go along to detect in farmers fields. Most of fields around south Wales have had Roman occupation. Especially around Cearleon and Carwent.
That is a fine spot Crow my fine feathered friend you mentioned.
But there is another shallow water detecting spot called Goodwin Sands off the coast of Ramsgate in the English channel. A lot of history there and treasure found in shifting sandbanks that are tidal. There are perhaps thousands of shipwrecks along the tidal sand bars of the english channel.
Treasures have been found there. Like the items below.
Here is drone clip of the sands.
Yet like all thing it does not come with out risks. These sand banks get covered in water at high tide. The sand banks shift revealing after storms exposed shipwrecks buried in the sands.
