Or like I suggested previously, you can just godmod Ivy, Lin and Cloak over to encounter some of the rock climbers.  Perhaps in stage 2, the climbers see the absent trio atop the cliff they're climbing and Ivy acknowledges the new distraction with a wave or something?  Also, would Ivy ever try to jump off a cliff to see if she could fly like that dude from Fantastic 4 or anything?  Just curious.