Summer’s not over til the last scene of the last summer Shakespeare production ends. That would be on September 26 in the Presidio when the FREE San Francisco Shakespeare Festival wraps its season in the Presidio. This year’s its “Two Gentlemen of Verona”, one of the Bard’s more bonkers comedies. Come an hour early and bring lawn chairs and picnics. The Presidio itself is rapidly becoming more user-friendly with a network of trails that keeps growing or being restored.