This chica is an idiot..sorry...but she is.
I have been there twice in years past taking my brother on a day trip from a family vaca in Carlsbad to let him surf that classic spot. There is a walk down trail that is totally safe and then there are the cliffs to the south of them that some hikers decide to use. Not often, but they do.
Why she would remove her clothing at the top of the cliffs is a puzzle too, as when one does enjoy the N beach below, usually one wishes to have their clothing near them as it is full of gawkers and walkers at times. Our experience anyway.