At midnight

Under the bright moon

A secret worm

Digs into a chestnut.

                    Basho
  
Large cave system with childlike statues of Jizos behind the main buildings of Ishiteji (temple 51)in Matsuyama. So far, this temple was the most mysteious temple I saw. 
  
The stones in front of the shrine had all names on it, it was a shrine for the wish of a baby. I guess, when the wish was fulfilled, a stone was donated.