As you pass the overlook, pass the first noticeable boulder (Bi-lingual) you will come to the trail that passes between boulders (stone steps). Don't take the trail, but stick to the line of boulders. You will see a tall face that faces the road, and then notice that there is an in-cut "cove" of boulderable faces. this "cove" is set-back from the main wall (called the Front Wall) and this is what is known as the Abyss Wall. The taller portion of the Abyss Wall is where you will find Vitamin B and a few others, and the deep overhung portion is where you find "Abyss".