Bristol’s Underfall Boatyard has a new Visitor Centre, thanks to a £4 million injection from the Heritage lottery fund and other donors. The former generator building of the harbour has been transformed into a visitors centre and café, where visitors can discover this history behind the Boatyard and the process by which the floating harbour is able to operate. We designed, built and installed three interactive water exhibits which each show a different way the boatyard stays operational. Using magnets and cogs, the visitors can discover the ability of the harbour to remain unaffected by tidal water levels, how the harbour stays free from silt deposition, and how to move a boat through a system of locks.