Full Synchronisation Requirement - Climb the tower in under 60 seconds.
Quickly follow Yusuf up the stairs, and begin to climb Galata Tower. The key thing to remember is to use the hook-assisted vertical climb as often as possible to try and catch up to Yusuf. Keep an eye on the path he takes and be careful not to hit the jump button too often or your might accidentally leap off of the tower wall!
When you reach the top, Yusuf elaborates more on the history of Constantinople, and then leaps from the top of the tower. Take your time to synchronise at the edge by pressing the Eagle Sense button. This will not only allow you to see your map but will also mark some key nearby shops and events on your map for later use. Using Eagle Sense and synchronising at viewpoints is key to finding all the secrets and collectibles, so don’t forget to do it at often as possible at every new viewpoint you come across as you explore the city.
Now it’s time to take your own leap of faith. Dive off of the tower after Yusuf!