Master Archer

Start with both of your hands on the third granite block up from the base, with your left foot on the lowest block, and your right foot on the block in between. From there, move your right hand up, match your feet on the second block. Then reach your left hand up to the fifth block to grab the vertical ledge, match your right hand to the other side. Reach up, and finish on smooth stone.

It is located on the second pillar in from the river on the leftmost arete when facing the Charles. 

Watch for broken glass. Bring a crashpad.