According to tradition, which was recorded by the British traveler William Turner in 1815, the monastery of Saint Thekla was built by Saint Helen during her visit to Cyprus in the beginning of the 4th century AD, when she had also established the Holy Monastery of Stavrovouni. The relevant tradition reports that Saint Helen arrived at the region where the monastery stands today, prayed to God and then Holy Water started flowing from the earth that helped her and her escorts to cool down. She then constructed a church over this spot, which she dedicated to the early martyr and equal to Apostles, Saint Thekla.
The Holy Water spring exists today and it is used by the faithful for the cure of skin diseases and eczemas.
In the trail through which Saint Helen and her Escort passed, next to the monastery, there were -until recently -trees of an oblique shape. A sort of certification by nature that bowed as the Saint was passing by.
More about the Monastery can be found here: http://www.mosfiloti.org/english/thekla.shtm
Now about the cache:
The cache lies in the surroundings of a small beautiful chapel right next the fence of the Monastery, since i wasn't sure if the Monastery gates are open 24/7. After finding the cache, I recommend you to visit the beautiful Monastery. It definately worths a visit!