The Shui Lo Cho pools are a waterfall-linked series of baths, where - until recently - you could swim with wild fish and take selfies in the glittering cascade.
Bloggers began blabbing about this spot (an hour's hike from Tai O) a while back, and bestowed on it a rather misleading moniker: "The hidden Lantau natural infinity pools".
By using "natural" they ignored the fact the pools formed behind dams built by the Water Supplies Department. And the "hidden" overlookd the two pages of Google results on this area.
So perhaps what followed was inevitable. "NO SWIMMING," yelled the WSD's fun police (who now patrol there daily) when we arrived last weekend. "Private area. Not safe!"
Hordes of sweaty, swimwear-clad hikers were perched at the water's edge, imagining how refreshing that first plunge would have been, their selfie sticks redundant.