In the itinerary of Thien Cung grotto – Ðầu Gỗ – Ti Tốp, one finds Ðỉnh Hương Islet or Lư Hương (Incense Burner Islet) to the southwest of Ðầu Gỗ Island.

Passing the Chó Ðá (Stone Dog) Islet and the Con Mèo (Cat) Islet, one sees an imposing stone slab resting on two other small stones stands blocked the way.

The stone slab resembles a huge incense burner, which lies in the middle of the sea as a holy object to worship the Sky and Earth.