From "Farmers of Forty Centuries", discussing of a 1909 trip to Hong Kong by F.H. King.

It appears that this was a floating island made up of boats that would come together in the night and tie together. What were they doing out there? Why were the police so concerned with people leaving Hong Kong and going to the floating island or crossing to Kowloon? Were they trying to flee Hong Kong for China, or were these criminals trying to escape justice?

Looking backward as we left Hongkong for Canton on the cloudy evening of March 8th, the view was wonderfully beautiful. We were drawing away from three cities, one, electric-lighted Hongkong rising up the steep slopes, suggesting a section of sky set with a vast array of stars of all magnitudes up to triple Jupiters; another, old and new Kowloon on the opposite side of the harbor; and between these two, separated from either shore by wide reaches of wholly unoccupied water, lay the third, a mid-strait city of sampans, junks and coastwise craft of many kinds segregated, in obedience to police regulation, into blocks and streets with each setting sun, but only to scatter again with the coming morn. At night, after a fixed hour, no one is permitted to leave shore and cross the vacant water strip except from certain piers and with the permission of the police, who take the number of the sampan and the names of its occupants. Over the harbor three large search lights were sweeping and it was curious to see the junks and other craft suddenly burst into full blazes of light, like so many monstrous fire-flies, to disappear and reappear as the lights came and went. Thus is the mid-strait city lighted and policed and thus have steps been taken to lessen the number of cases of foul play where people have left the wharves at night for some vessel in the strait, never to be heard from again.