A diver goes into the river to help construct defence rafts for the Isle of Sheppey.
Item title reads - Medway boom defence rafts are now being used to overcome Sheppey's isolation - but islanders want a "Tower Bridge". Kent.
L/S of a boat being rowed slowly down the river, the defence rafts are under construction. C/U as a man has a diving helmet fitted, M/S as he climbs down a ladder into the river.