Methods

Bridge drop

This is where the magnet is lowered straight into the water from a bridge and unless the magnet has attracted something of interest it only needs to be pulled clear of the water before lowering back down

Dipping

Dipping is where you stand on the bank side and just keep lowing the magnet in the water's edge, this can also easily be done off the edge of a boat

Throw & walk

This method involves throwing the magnet as far as possible and then walking along the waters edge so the magnet moves in a diagonal motion and so covering a larger area

Throw & pull

This is simply standing at the waters edge and casting your magnet in the water and pulling it back in