Between the Adyar River and the coast, the 100-hectare grounds of the Theosophical Society provide a peaceful, green, vehicle-free retreat from the city. A lovely spot just to wander, they contain a church, mosque, Buddhist shrine, Zoroastrian temple and Hindu temple as well as a huge variety of native and introduced flora, including the offshoots of a 400-year-old banyan tree torn down by a storm in the 1980s.
The Adyar Library here has a huge collection of religion and philosophy books (some on display), from 1000-year-old Buddhist scrolls to handmade 19th-century Bibles.