in the middle of the very busy muslim quarter, the mosque is a heaven of peace. stroll, look at the Chinese signs interlaced with the arabic lettering. Restore your soul.
Now it is not easy to find it if you miss the easy way to find it.
face north with the Drum tower in your back the easy way to the Mosque is a small busy street at 10 o'clock.(kind of). take it and it will you directly there.