Isobel Osborne, nine, with coastguards and police officers after her find
It turns out the item was, in fact, the end of a fishing rod.
Tim Judge, Coastguard station officer, said: “We confirmed this by the writing on the side of it, which was all covered in barnacles.
“After taking a closer look, we identified it after a Google search of the trade name.”
He added: “It did look suspiciously like a hand grenade.”
The Coastguard team had arrived at the beach before the bomb squad had got there – at which time the tide had come in and the item could no longer be seen. They went back early the following morning to dispose of it. It was placed in the bin.
Mr Judge said the procedure if anyone sees anything suspicious is to dial 999 and to ask for the Coastguard.