After a long hot hike along the bisse (water canal built in the 1400s to bring water to the south facing dry hillsides for survival) we ended up under ground.
The grotto had a running hot water stream going through it. Wow! At 1st the water seemed cold, but it was just that we were entering a cave of 10 degrees when the outside temperatures were around 25 degrees. We cleaned off and enjoyed some red wine before heading back to the car.