Water Castle is one of heritage cultural of Yogyakarta palace, which is still maintained continuity. The Water Castle lies in the south of Yogyakarta Kingdom. Until now, Water Castle became a tourist attraction visited by many traveler both foreign and domestic. Especially after the restoration, making Water Castle building looks more beautiful. Water Castle or Tamansari consists of two words, namely Taman and Sari. Water Castle complex is a beautiful garden park belongs to Sultan palace. To enter the Water Castle can be through a back road, because the front road has been closed by dense population. The Water Castle was built during the reign of Sultan Hamengkubuwana I and completed by Sultan Hamengkubuwono II. The architect of building is Portuguese style, so the art building has a very strong European architecture. But the symbolic meaning of Java was maintained and more dominating.
The Water Castle is complex consisting of swimming baths, water canals, private rooms and large pond. Historically, this place used to bath by reigning monarch, Sultan of Yogyakarta and their families. The venue is also used for worship, because Water Castle building is also equipped with mosque, precisely in building of Gumuling well. In the neighbour hood of the Water Castle, there is passage. According to the story, there is a hallway connecting the ends in the next of Parangtritis beach. It said, king of Yogyakarta is always associated with South sea Queen or Nyi Roro Kidul. The hallway was the path used to have a meeting with the Queen. But now the hall has been closed due to a very old age.
Besides being used for a vacation home and resting place, Water Castle was also used as a fortress. The wall that surrounds the Water Castle even look old but still sturdy. This is evident when the earthquake in Yogyakarta and surrounding areas in the year of 2006, the wall is still able to stand firmly.