Some people catch fish. Others like Tim Riley catch cell phones, rusty nails, 100 year old drill bits, coins and whatever else is metal and lurking on the bottom of the river.
Christchurch based Riley and his young sons are magnet fishermen, and they love going out in the evenings after work and school to see what they can pull up from the murky depths of the Avon and Heathcote Rivers.
It was so much fun and so interesting, Riley said he had ordered a magnet 14 times more powerful than the one he was using now to hunt deeper in the silty depths.
Good family fun.