Icefall Foothills Cave can be found in the northwestern part of the Hebra Mountains.
Cave Location
This cave is located at -4428, 3758, 0224 in the Hebra Mountains. You will need to melt the ice that blocks the entrance.
Bubbulfrog Location
This cave's Bubbulfrog can be found by shooting the ice in the ceiling in the cave, then going up to where the ice was.
Cave Shrine
In the same room where you shot the ice in the ceiling, you can jump up and down on the ice in the floor to find a room with Bokoblins. After you defeat them, you can melt the ice in the wall to find Otak Shrine.