Finding this cache involves hiking up the slopes of Stara Planina (Balcan Mountains) near Sveti Vlas. Along the way, you will find three laminated cards with riddles. The correct answer to each riddle is a clue to the next card and, finally, to the cache location.
The coordinates above are NOT for the cache, but for the place where Card 1 is hidden (under stones at the base of a tree).
Happy caching!