We tell you what you need to do to activate the last sync point in Jotunheim — climb to the top of the mysterious ice-covered tower
First, go to the foot of the tower and find a hole in the wall. Make your way through it inside. Exit through the large opening and climb the ledges on the right. Enter the tower through the window. Now a tree grows here. Jump down into the room and go up the steps. Go outside and climb the other steps around the tower outside.
Go inside the tower and move along the beams. Jump over to the beams on the other side and climb out through the window. Follow the rope to the left and move along the parapet further, around the corner. Jump over to the ledge in front and climb inside through the window.
Climb the steps; break the thin ice to reveal the shelving. Slide it towards you and towards the ledge on the right. Climb this ledge with the rack and ring in the wall. Jump forward using the crossbar, onto the yellow mold wall, and climb to the right.
There is a chest here. There are two openings on the right. Exit through any and go upstairs along the partition separating these openings. Move along the snow-covered ledge around the perimeter of the building, counterclockwise. You will need to carefully bypass the ice stalactites. Climb out through the window, hang on the ledge and climb to the right, past the brown flag. Move to the right around the corner to another flag. Climb higher and higher, and soon you will find yourself at the top.