I believe I was reading Steve's 2010 Italy book when he made note of a holiday on April 25th. Not sure if it was localized to Cinque Terre, but he warned that everything, including the hiking trails (why???) would be closed as everyone celebrated. Of course I did not read that section before I made our plans.
So... What to do on that day of enforced leisure? If the trains are running, I thought of Santa Margherita and Portofino day trip with a hike to the monastery. Any other ideas? Is the 25th the holiday? What might I expect in terms of restrictions?