the brief for this building . was to create a world—class building in which to house the internationally- significant boat collection. it needs to be a building that - could accommodate large—scale boats, that was exciting for the public to want to visit, but also, - importantly, because it sat within one of our great - national parks, the lake district national park, . it had to be part of the landscape it was within. sustainability has been really central to the concept of the building. we have systems such as the lake—source heat pump that heats the whole museum, underpinning the energy strategy. we've selected, wherever possible, local materials, so that the travel from source to site is as short as possible. the building has a zero—waste strategy so, actually, all of the domestic waste water is treated on—site and it's filtered through the landscape and reed beds, so it can then be discharged back into the lake as clean water. the site isjust amazing.