Yathuru Pokuna (Key Pond) of Abhayagiriya Monastery – අභයගිරිය යතුරු පොකුණ
This Yathuru Pokuna has the best resemblance to a key. The staircase down to the pond starts from the bit part of the key and takes a sharp right angle turn in the middle of the steps and the stairs continue along the shaft of the key. The circular pond at the end of the stairs represent the bow of the key. On the other 2 ponds, the stairs start at the shaft part of the key which takes you directly down to the pond with no bit part of the key.