Cancun's human reef

The underwater installation in the waters of the Punta Nizuc National Marine Park off Isla Mujeres currently numbers 100, but that number will swell to 400 by the end of the year.

The sculptures are the work of British artist Jason de Caires Taylor and aim to highlight ecological processes while exploring the intricate relationships between modern art and the environment.

The artist, speaking to The Sunday Times, said: "The Cancun Marine Park is one of the most visited stretches of water in the world, with more than 750,000 visitors each year, placing immense pressure on its resources.

The location of the sculptures will promote the development of natural reefs, relieving pressure on them by drawing visitors away."

Over time crustacea and living coral will sprout from the concrete sculptures and create a vast living reef.

The sculptures are located in clear, shallow waters and are easily accessible to divers, snorkelers and those in glass-bottomed boats.

The artist is still seeking models to cast in the installation, and people interested need only send a picture and be available to travel to Cancun at their own expense.