Cascata da Ribeira Quente is located near the Ribeira Quente’s tunnel when driving from Furnas to Ribeira Quente (road EN2-2a). Park the car somewhere outside the tunnel and walk back to the waterfall.
The picture is taken from the car, in the tunnel, during some heavy rainfall by my colleague Joelle Jutte. The rain shower was to heavy to walk to the base of waterfall.
Cascata da Ribeira Quente is visible from the middle of the tunnel. You can walk towards the waterfall that has a thermal source.