It’s part of the Totally Thames festival, which takes place throughout September at various London venues.
The piece was created by artist Jason de Caires Taylor, who created an underwater sculpture park in Cancun, Mexico, in 2009. It’s called The Rising Tide, and you’ll find it on the foreshore near Vauxhall Bridge.
The sculptures show the Four Horsemen of the Apocalypse, but horses’ heads have been replaced with oil pumps, a striking reference to pollution and destruction from fossil fuels. Each rider sits with eyes closed, as though refusing to see the consequences of our actions.
They can only be seen at low tide. They were certainly attracting plenty of attention this afternoon.