Every year in march the "Maratona Clube de Portugal" organizes this beautiful half-marathon that crosses the Ponte 25 de Abril (25th of April bridge).
In the last couple of years more than 30000 athletes per year attended. The course is completely flat.
I did it this year and enjoyed it a lot...
We happened to be in Lisbon when the Lisbon Marathon was being run. It was a lovely morning for it, at least it was for watching it. The route took the runners down the seafront, finishing in the Praca de Comercio. It looked very good, though we didn't stay to see them finish as we were off to Sintra for the day. We saw some of the half marathoners finish though.
We arrived in Lisbon & remarked how quiet it was, no traffic, next a police car went past us clearing the already quiet roads . Then one runner came past us, just thinking he was a Sunday jogger we carried on, then another & another went by, it turned out it was a marathon!!
The streets were much busier on our walk back to the bus station