Double Rainbow

Sit start where the left side of the cave meets the ground, not in the cave but on the outside as it begins to wrap around the corner. Traverse right over the opening of the cave. At some point you'll need to switch feet from one side to the other while your hands are towards the center of the top of the "rainbow" arch. Continue the traverse until you're fully to the right of the arch, then follow the crack up to the top edge of the rock (top rock is a bit dirty / overgrown), and follow that edge back over the cave until you're fully wrapped around the left side of the rock formation. 

Have your spotter move your crashpad, especially as you traverse the first rainbow move under the arch since you'll likely be horizontal.