It is a well known fact that ecology plays a great role in modern life. Cars pollute a lot. In such situation cycling is the best alternative. Cycling is absolutely ecological kind of transport. It is mobile, and it is easy to cycle. And it is great for health, especially for your heart or legs.
But I prefer walking. It is really amazing. You can just stop and watch various sights, enjoy weather and communicate with people. You can take your friends with you for fun. With them your way becomes more interesting and full of positive emotions.
All in all, every kind of transport has its pros and cons. It is a vital problem of the day for many people. Somebody does not like taxies, others do not like walking. Tastes differ.