Telegraph: Using buses, trains, bicycles, boats, and a horse drawn cart, Barbara Haddrill carried her bridesmaid’s dress in her rucksack across 18 countries. The 30-year-old ecology worker lives in a 12ft caravan on a farm in the foothills of Snowdonia National Park, in mid-Wales. Her home is “totally off-grid” with power coming from a small hydro-turbine in a nearby river. Heating comes from the wood in the surrounding forest. Because of her commitment to the environment, Miss …