This multi-cache will lead you to one of five Zagreb's sculpture parks - Sculpture Walk on Sava River Embankment.
Idea for this sculpture park was first publicly presented in 1981 by Ratko Petric. The main motive for this initiative was to revive the neglected area of Zagreb along Sava River. Realization of this idea started in 1990 when the first sculpture ("Drops") was placed on Sava River embankment. The second sculpture ("Runner") wasn't placed until 1995. Presently there are 10 sculptures in this sculpture park. One of the sculptures - "Signpost" - is the highest sculpture in Zagreb.
This multi-cache has six stages. Each stage will lead you to another sculpture. For each stage your task is to find the nearby sculpture information sign and note down the number on that sign. At the end you will have six numbers. Take all digits from all six numbers and add them all. That is your value X.
Cache is hidden at the coordinates:
N 45 47.(3*X+14) E 015 57.(6*X+4)