At the Centre for Alternative Technology in Pantperthog, you can ride an incredibly steep water-powered cliff railway to a haven full of plants, wildlife, learning, play, and large-scale outdoor displays and experiments. The cliff railway features two carriages, which are linked together by a steel cable. When the railway needs to move, a tank on the upper car fills with water, while the tank on the lower car is emptied. As the water changes the weight distribution between the two cars, gravity moves one up the rails and the other down….
