Heart-stopping footage showed the moment a seal flipped on top of a kayak - and nearly capsized it.<br />Ewan Campbell, 19, was paddling alone when a seal lunged at his kayak at the Falls of Lora, near Oban, Argyll and Bute.<br />The animal, which would have weighed around 40kg, was unharmed and dived back into the water at the tidal rapids
