˙˙˙You have to swim in the sea to solve the "mystery" part of this geocache!˙˙˙

Solving the mystery
To solve the mystery, you have to count the characters (letters and digits) (only big ones) on the yellow buoy at the starter coordinates ("y" value) and multiply the number by 5, then add it to the given coordinates below:
N 44 18.566 E 15 5.203
(N 44 18.566 E 15 5.203 + y x 5)
OR (Only recommended if the buoy isn't there, diving glasses are recommended)
Count the characters (letters and digits) on the rock (not tire) weight of the yellow buoy at the starter coordinates ("z" value) and multiply the number by 2.5, then add it to the given coordinates below:
N 44 18.566 E 15 5.203
(N 44 18.566 E 15 5.203 + z x 2.5)
The received coordinates are the actual coordinates of the geocache.
Logging the cache
Please take a picture of the beach or the cache and upload it to your log but please do not spoil.
Thanks! Have fun Geocaching!
GCDigery

Vir (pronounced [v̞îːr]; Italian: Puntadura, Dalmatian: Punta de Ura) is an island on the Croatian coast of the Adriatic Sea with an area of 22 km2. It lies in Dalmatia, north of the city of Zadar. It is connected to the mainland via a road bridge. The main village on the island is the eponymous village of Vir. There are two more villages, Lozice and Torovi. According to the 2011 census, the island had a population of 3,000 inhabitants, making it the 13th most populous island in Croatia.
The highest peak on the island is Bandira (112 m).


