Due to its location, by far the best and most common way to get to Wat Arun is on the river. The Tha Tien express boat pier, at the southwest corner of the Grand Palace / Wat Phra Kaew, is opposite Wat Arun and boats leave every few minutes. You can get to Tha Tien on the Chao Phraya River Express boats from any other pier, or take a taxi to it. Buses that go near Tha Tien are ordinary buses 1, 25, 44, 47, 62 and 91 which stop on Maharat road. There are also plenty of Thonburi canal tours that go here