Hardly worth mentioning are the 'hot springs' 4km outside town to the west. Dozens of White Thai families have set up shop offering a bath in some geo-thermically extruded spring water for 10,000 VND / person per hour.
Some of the tubs are sunken concrete affairs, big enough
for two people. We heard that there was a communal option where you
could bathe for free, but on our visit the locals insisted there was no
such thing. No worries in any case — one of the owners ran the tap for
us to test the water, and it wasn't hot, it was luke warm. Maybe they
needed to run the take longer.