Painting Stream (also called Painted Stream) or Suoi Tranh in Vietnamese is much easier to find and right next to the main street that connects Duong Dong and Ham Ninh. The area has been developed into a park with the artful concrete sculptures Vietnam is s famous for. Tranh Stream is definitely a place to visit on your way from or to Ham Ninh fishing village.
In a stark contrast to these two picturesque points of interest, the third landmark - Da Ban Stream - is so flooded with trash that I recommend to cut it completely. The people of Duong Dong obviously go there to party and let the water take care of their rubbish. And the guys living there and charging money for parking the motorbike (besides selling beer) don't give a crap either.
Forget Suoi Da Ban
Generally speaking of nature on Phu Quoc, there are loads of butterflies around if you manage to walk the area with open eyes, as well as many other kinds of insects. However, refrain of touching any insects, worms and caterpillars. Vietnam's fauna is incredibly diverse and many animals have developed very efficient defense mechanisms that can knock out even humans.
Phu Quoc Water Sports Holidays on a tropical island would be odd without the opportunity to do sports. Water sports. Here is a selection of stuff that you can try on Phu Quoc.
Shopping on Phu Quoc You can get some really interesting products from Phu Quoc, mainly pepper, pearls and fish sauce. There are other things too, just check out the variety of shopping opportunities on the island.