The hyperbolic crochet reef started in Australia, and has travelled around the U.S. gathering beautiful creatures, made by avid crocheters, where ever it goes. Now it has come to London and it is a wonder. Using bright and vivid colours such as oranges, reds and purples, every shape from the sea has been made: shells, coral , starfish and jellyfish. One whole set is made out of black and blue beading and shines in the light with golds and silvers.

What is it? It was the brainy idea of a mathematics researcher and crocheter who realized that she could recreate in crochet 3-D models of creatures such as corals, anemones, kelps, sponges and flatworms. They all have a unique shape known as hyperbolic geometric structures and these shapes can be crocheted so that one can "hold the theorems in their hand". The "reef" has been created as a statement about the impact of global warming on the coral reefs in The Great Barrier Reef in Australia and the world. When the microscopic organisms that make up coral become stressed by environmental factors such as rising water temperatures, they become bleached out. If conditions improve the colour comes back, if not they continue to decline. Over 3,000 sq. km. of reef are lost every year.