The top way to travel in terms of energy efficiency, and hence carbon emissions, is cycling. Bikes are lightweight and therefore built for efficiency. They also offer the best ratio of miles to energy which is available. Without burning any fossil fuels, all one has to worry about while cycling is the air miles of one’s breakfast. Moreover, cycling is also a fantastic way to get fit. The traveler can start to gently build up their fitness and power during their journey; maybe even keep the level of fitness when they get home and incorporating cycling into their normal routine. Of course, far from being just a means of transportation, cycling can be the centerpiece of a holiday. Such as traveling through Holland on two wheels and in the open air.