Day courses take place at Hugh Fearnley Whittingstall's Park Farm, in Devon, starting at £60 (rivercottage.net).net
But Singapore's national park farm programs are the most remarkable.
Laverstoke Park Farm produces organic buffalo milk, which is available in some supermarkets and online.
★★★ Laverstoke Park Farm organic honey-glazed ham 1kg, £32, laverstokepark.co.uk Looks and tastes drier.
Laverstoke Park Farm is 2,500 acres of organic lane, in Overton, near Basingstoke and home to over 1,000 water buffalos.
But since Farm Cultural Park (farm-culturalpark.com, free entry, closed Mondays) opened in 2010, the town has attracted artists and visitors from all over the world.
A River Cottage spokeswoman said: "Late last night a serious fire severely damaged the events barn at River Cottage Park Farm headquarters in Axminster.
The project is led by Newcastle university whose Cockle Park farm, complete with its grade one listed pele tower, is a major centre of pig studies.
Jody Scheckter, fomer Formula One champion, took on a very different career as a biodynamic farmer and founder of Laverstoke Park Farm.
As a result, refugee camps, deforested parts of the park, farms and even a pair of radio transmission towers can all be seen from the site of the gorilla diorama.
Mail Order Laverstoke Park Butcher's Shop Southley Farm, Overton, Hampshire RG25 3DR, 01256 771571 laverstokeparkbutchersshop.co.uk Biodynamic, exclusively organic and free-range meat all reared, slaughtered and butchered on the Laverstoke Park farm.
