When to use this
Use when the itinerary needs a fallback before tickets and crossings are fixed.
Why it matters
Navigazione Laghi and Trenord references help explain the buffer question when weather, ferry disruption, train returns, or shoulder-season timing could make a central-lake day too tight.
Confirm before you rely on it
Check same-day weather, ferry service updates, timetable changes, final crossings, train return options, ticket exposure, villa timing, queue pressure, and a land-based fallback before locking the day.