Enhanced with a synched, atmospheric sound design, created by Joe Acheson (Hidden Orchestra), each of the twelve light hoops represent the average light fall over one month of the year.

As a touring sculpture, Circa can be adapted in response to its location.

Exhibited at Vivid Light Festival, Sydney, visited by over 2 million people. Circa is still touring internationally.
Originally developed with the support of Shrinking Space as part of The Wonder Project at Wakehurst Gardens in the UK, the concept was developed with the help of scientist Anne Vischer at Kew Gardens.