Guides by Lonely Planet
After the fall of Ayuthaya, King Taksin ceremoniously clinched control here on the site of a local shrine and established a royal palace and a temple to house the Emerald Buddha. The temple was renamed after the Indian god of dawn (Aruna) and in honour of the literal and symbolic founding of a new Ayuthaya.
When we visited, the spire of Wat Arun was closed due to renovation. Visitors can enter the compound, but cannot climb the tower.