If you haven't hiked to Luusikasoo before, now is the time. There is a boulder under nature protection in Kukesaare, about which Wikipedia writes:
Kalevipoeg's whetstone is a protected boulder (geologically amphibranite) in Jõgeva county, Tuimõisa village, Jõgeva municipality. The boulder is broken in three. The dimensions of the boulder are 6.0 x 2.1 x 1.2 m.
In Laiuse-Tähkvere municipality, there is a swamp called Lusikasoo inside the crown forest and there is one big long slag-like rock, it is called the Kalevipoeg scythe whetstone. Once a woman there mowed hay and cried that she had been given much hay to mow and could not mow. And Kalevipoeg heard this, and came and helped the woman to reap, and to reap with her great scythe, and to cut off all the seed. Kalevipoeg got angry, threw his whetstone down into the swamp and left himself. This is how this big rock-like stone has stood in the swamp to this day (folklore.ee)
It is suitable to approach the treasure from the north, where you have to cross the Mäistemäe ditch, or from the south over Luusikasoo, along the forest path, which starts from the village of Tuimõisa. The treasure is hidden from the slate about 20 m away, zero indicates the exact location. NB: The location of the stone is not exact on the main map of the Estonian Land Board.
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