Compared with the waterlogged Mekong Delta, Phu Quoc has very little surface moisture, but there are several springs originating in the hills. The most accessible of these is Suoi Tranh ; look for the entrance sign and concrete tree from the Duong Dong–Vong Beach road. From the ticket counter it’s a 10-minute walk through the forest to the falls.
Suoi Da Ban is a white-water creek tumbling across some attractive large granite boulders. There are deep pools and it’s nice enough for a dip. Bring plenty of mosquito repellent.
For both of these falls, the best months to visit are between May and September – by the end of the dry season there’s little more than a trickle.