Detecting is allowed with permission: a day/weekly pass from the beach attendant, or a 12-month permit from the Parish Clerk. Keep away from cliffs and mudslides, and significant finds' rewards are usually split 50/50 with the council.
Covers
Charmouth foreshore and adjoining parish-owned land
Permission
Verbal application to the Parish Council beach attendant (Beach Office) for a day/weekly pass, signing the policy; or written application to the Parish Clerk (clerk@charmouthparishcouncil.gov.uk, 01297 560826) for annual consent with a passport-style photo. No cost stated.
Watch out for
No detecting on or near cliff faces or mudslides; no digging beyond 1m, into the possible Jurassic forest, or on Evans' Cliff / Evans' Green grassland and paths.
What the source says
"It is the Parish Council's policy that metal detectors may be deployed on the Foreshore subject to:"
Tap any spot in England on the UK Detector map to check it against scheduled monuments, SSSIs, nature reserves, National Trust land and access land in one go. Free: 3 checks a day.