If you're walking along the Thames foreshore at Vauxhall and spot heads poking up in the water, don't leap in or call the RNLI — it's an installation by Jason deCaires Taylor for the Totally Thames festival.
Four horses (with heads shaped like oil drills) and their riders have been placed so they are concealed and gradually revealed by the tide every day,
The Rising Tide aims to question our future relationship with fossil fuels. The corpulent businessmen on two of the horses represent the current position of power over these resources. Their counterparts are two small children depicting future generations that will live with the consequences of overconsumption.
The 3.3m-tall sculptures are free to view from the riverside walkway for up to two hours either side of low tide. They will be in situ throughout September.
All images: Jason deCaires Taylor (www.underwatersculpture.com)