Grab a quick espresso and a cornetto at a station café (Bar Motta or Paneficio) so you're ready for the 07:20 train; cafés in Milano Centrale typically open by 6:00–7:00. Eating at the station saves time and lets you board fresh.
Regional train departing Milano Centrale to Varenna-Esino (your listed 07:20–08:24); trains are frequent but take this booked/checked service to match your schedule. Scenic northern approach along Lake Como—bring a window seat.
Arrive at the station and follow signs to the lakefront—it's a 10–15 minute downhill walk to Varenna (Traghetto) harbor. Use this time to drop bags or visit a quick restroom; ferries depart from the lakeside pier.
Short public ferry crossing (15 minutes) from Varenna to Menaggio—enjoy first panoramic views of the lake and towns; the ferry times you gave include a 9:10 option, which fits this schedule. Check lake ferry board for last-minute changes.
Stroll Menaggio’s long lakeside promenade and the compact centro storico — lovely views, colourful houses and small shops. This is free and gives a gentle introduction to the lake towns.
If you’re up for a gentle climb, take the short uphill walk to the panoramic viewpoints above Menaggio for sweeping lake vistas (30–45 minutes round trip); Villa Mylius Vigoni gardens may be private or accessible on limited hours, so check opening times in advance.
Enjoy classic lake cuisine (fresh lake fish, risotto, or pasta) at a waterfront restaurant such as La Terrazza or a friendly local trattoria; most restaurants serve lunch from ~12:00–14:30. This is a good chance to relax and taste local specialties.
Wander the side streets, pick up a gelato, or relax at the Lido area; head back to the ferry terminal around 14:10–14:20 to be ready for boarding. Shops and cafés are typically open through mid-afternoon.
Cross the lake on the 40-minute ferry to Bellagio (your listed 14:35 service) — this is one of the most scenic stretches and offers superb views of the central promontory and villas.
Arrive in Bellagio and walk to Punta Spartivento—the tip where the three branches of Lake Como meet—for panoramic photos and a quick look at the lakeside promenade. The compact old town has narrow streets, shops and cafés; plan 30–45 minutes.
If time allows, visit (or at least view from the lakeside) the Villa Melzi gardens — gardens are generally open midday to early evening (often ~8:30–19:00), but with the short stop prioritize the lakeside walk and a coffee. If you want a full garden visit, allow 1–1.5 hours and check current opening times.
Board the 16:00 15-minute ferry back to Varenna (per your schedule) — this quick crossing returns you to Varenna in time for an afternoon visit to the town's top sights before the train home.
Arrive Varenna and either walk the lakeside gardens of Villa Monastero (usually open ~9:00–19:00; a peaceful botanical promenade) or head uphill to Castello di Vezio for panoramic views and the falconry displays (castle often closes ~17:00–18:00 in low season). Choose based on energy and preference; both justify quick 45–60 minute visits.
Board your listed 17:35 regional train back to Milan, arriving ~18:40; relax on the ride and enjoy final lake views from the carriage if seats are available by the windows.
After arriving in Milan (18:40), try a nearby restaurant such as Pizzeria Spontini (quick, classic slices) or a trattoria near the station for Milanese specialties; most restaurants around Centrale are open evening from ~19:00–23:00. A relaxed dinner caps the day.
Ferry and attraction opening hours can change seasonally—double-check live ferry timetables and villa/castle opening times the day before travel. Allow extra boarding time (10–15 minutes) for ferries and plan steep walks (Castello di Vezio) if you intend to climb — bring comfortable shoes and a light layer for lakeside breezes.