Cusgarne Organics near Truro. The farm is beautiful, set in a secluded valley away from main roads, producing veg boxes, beef, eggs and chickens. They've also planted up more orchards and some nut trees including sweet chestnuts and almonds.
One really interesting project was Biodiesel production from waste cooking oil from the surrounding area. "Biodiesel Dave" from Cleaner Combustion produces this stuff in a workshop on the farm to a high standard - i.e. that can be run in modern cars, not just dirty old Land Rovers and tractors.
It certainly gave me a further jolt of inspiration for use of waste oils to power machinery. The photo (above) on the side of his car, whilst going against the ethos of healthy organic food, gave everyone a laugh!