Our guide Elmer has taken us very pleasantly through the streets of London to show famous and hidden gems of the center. Elmer knows a lot, including the history, and has a lot of fun to make you enthusiastic about this special city. This bike tour is an enrichment of our visit to London. The tips that Elmer gave us were very useful. For example, we visited St. Pauls for the 17-hour church service. What an experience, beautiful!