There were Tamil drummers and dancers; cacophonous chants; toe-crushing crowds (no shoes in the Temple); Brahmin in chariots; vibrant colors, endless images of Ganesh, fire, incense, jasmine, and...an heroic number of coconuts.
The Brahmin breaks the coconut and gives it back to you filled with flowers, sandalwood paste, and camphor. Apparently, "the shell symbolises the illusion of the world; the flesh symbolises individual Karma; and the coconut milk symbolises the human ego. By breaking the coconut, you offer your heart to Ganesh."