Tin from the sea
Tin from the sea: how seabed tin forms and how it has been worked
Tin does not stop at the cliff edge. Rivers and the sea carried ore and mine waste out onto the seabed. Whether anyone may dig it up again is a licensing question, and the guide here answers it first.

1 guide in this section
Image credits
- A wide view of St Ives Bay from Godrevy Point on the north Cornwall coast — Nilfanion, CC BY-SA 4.0, via Wikimedia Commons