Your University Has Installed a New Meditation Garden Which Consists

Short Answer

Your university has installed a new Meditation Garden which consists of several island gardens connected by bridges. A layout of the garden is shown below. You are enrolled in a Buddhism class and your instructor assigns you the following assignment.
Start at the Tranquility Station and walk through the Meditation Gardens. Every time that you cross a bridge you must recite a Buddhist verse. Continue walking through the gardens until you have crossed each and every bridge. End your journey at the Tranquility Station. What is the fewest number of verses that you would need to recite in order to complete the assignment?