Going out in the water at my local beach recently I was pleased to note that it was unusually clean and, moreover, that a net had been placed which prevents rubbish from floating shorewards.

After remarking to a friend that this was a marvellous idea and that there must be many people who have experienced rubbish in Hong Kong waters I was even more delighted to learn that it was in fact a shark net.

Clearly this represents excellent value for money.