Parking fees could be introduced at a scenic seafront stretch in a bid to stop it being overrun by an “encampment” of campervans. Overnight charges are being investigated as an option to stop owners setting up for long periods at the Shingle Bank on Sheppey, something residents say is worse than ever. For almost six months they have been calling for restrictions to be put in place, fearing the visitor hotspot, between Sheerness and Minster, is turning into a “squatter camp”. Swale council, which runs the Environmental Agency-owned beach, says introducing fees would allow people to “enjoy the b…