It started with a conversation on the importance of the environment to the region and in particular, the issues with the exploration for gas and petrol in the Algarve.
This was followed by music, which attracted more members of the public to stop and listen, to what was being said.
There also was a petition circulating against the proposed exploration in the Aljezur, which is to start shortly. Unfortunately, I left to cycle back to Monte Francisco before the finish. But to me, it seemed the audience was growing all the time.