There are several routes here including Center Flow Left (Main Line) and other variations which are dependent on conditions. Pretty obvious what to climb; just pick what looks like it is in and have at it. Spiral Staircase can be seen on the far left side of the photo, the two main central flows are both just left of center, and Cave Man is in the center (Chouinards Wall is the shorter wall with fat ice on the far right of the photo). The two large flows in the center are both approx. WI4.
Follow the directions given to the Main Falls area (between the currently iceless Bard-Harrington Wall and Chouinards Wall).
If you climb the center routes with fat ice, you should be able to sink as big a screw as you want. There two bolts with chains on a boulder at the top of the ice (maybe 15 feet back from the edge). You can climb the route as one pitch using a 70m rope (rappel with 2 70m ropes). Without 70m ropes, you can split it into two pitches.
BETA PHOTO: Main Falls showing (from left to right): (1) Spira...
Climber rope soloing up the Main Wall
Mark Collar topping out a nice 70M pitch of Center...