Sometimes adventure means being mindful of a pain. When sunny, the rising rocks above the water and their upside-down reflection have a hopeful mixture of shades of blues and greens, but when cloudy, a grave simplicity is the theme.
Swim, climb, cycle, or park your camper van. The natural refuge in Coimbra district. The nearest to the lake village welcomes camper van travellers, cyclists, swimmers, climbers, via ferrata enthusiasts, and even skaters. The journey from Coimbra's side is one of the most (I almost want to say the most) scenic in central Portugal.