But islet

Some 30-minute boating away from the Con Coc Islet, on the way to the Ba Trai Dao (Three Peaches) Island, visitors see a pen bobbing (But Islet) in the seawaters.

This constitutes a monument of knowledge Mother Dragon wanted to pass down to the present-day generations.

Lying adjacent to the Pen Islet is a small attractive beach. Tourists can anchor there to take a bath.