On July 20 the official self-guided trip was over, so I chose where to go. We went to Valahnuamol point. On the way we stopped at Krýsuvík geothermal area. The colors there are magnificent. The solfatara fields of Krýsuvík are near the center of Hafnarfjörður. We saw steaming volcanic vents and boiling hot springs, framed by multi-colored hills. A boardwalk winds through the bubbling and hissing geothermal area, with signage explaining the geology.
Areas like this are national treasures. There are signs saying stay on the paths. It was upsetting to see footprints in some places. Those prints will not go away.