This is one of the most interesting tracks I've hiked! On the one side the steep is almost vertical, on the other - it is deeper and very very steep... There is steel cable mounted in the rocks to protect the visitors, but before it was mounted - the people was passing the ridge seated like on a saddle - "riding" the mountain :-) In fact the name "koncheto" means "The small horse" in Bulgarian.
A lot of adrenaline and beautiful views when there is no fog (in the Autumn maybe). The place is windy so keep in mind that the weather may dramatically change for a minute.
You can find edelvais there but don't break it - keep it so other tourist can see it too (usually people are surrounding with stones to protect them)