Yes, most of them are hidden like the one on this picture. You'll find a number of easily accessible ones near Dahn and Erfweiler but you can bet that they will be very crowded. Better hike for a while and climb one of the hidden ones.
"As an adolescent I aspired to lasting fame, I craved factual certainty, and I thirsted for a meaningful vision of human life - so I became a scientist. This is like becoming an archbishop so you can meet girls."