4 Days: Geneva, the Alps and Lake
Four days changes the math on Geneva completely. Two days in the city itself covers everything essential (see our Geneva travel guide for the full depth on those two days), then two more days pull you along the lake shore into two different countries without ever changing hotels. This is a base-camp itinerary, and it works because Geneva’s train and boat network reaches further than most visitors realize. Tighter on time, drop to the 3-day version ; have a fifth day, the 5-day plan adds Gruyeres.
| Day | Focus | Distance/time from Geneva |
|---|---|---|
| 1 | Water, Old Town, first dinner | In town |
| 2 | CERN, Reformation Wall, Bains des Paquis | In town |
| 3 | Lausanne | 35-45 min train |
| 4 | Montreux and Chillon Castle | ~1hr train + short CGN boat |
Book these before you go:
- CERN Science Gateway registration - free, but online slots run out up to a month ahead
- UN Palais des Nations tour - paid, passport required, book weeks ahead
- Montreux and Chillon Castle day trip on Viator
- Geneva hotels near Cornavin on Booking.com
Day 1: Water, Old Town, first dinner
Train from GVA to Cornavin runs 6-7 minutes, roughly CHF 3. Walk to the water first: the Jet d’Eau’s 140-meter column is best seen up close from the Eaux-Vives side, not from a distant photo spot. Climb into the Old Town next. St Pierre Cathedral costs nothing to enter, and the narrow tower stairs, about CHF 5, put you above the rooftops with the lake spread out below. Coffee at Place du Bourg-de-Four, then dinner across the Arve in Carouge, the old Sardinian quarter, which I’d take over the more-photographed Old Town streets any night for both atmosphere and price.
Day 2: CERN, the Reformation Wall, Bains des Paquis
Book CERN’s Science Gateway online ahead of arrival; it’s free, and the guided underground tours release only two hours before start time from 8:30am, so hold your morning loose if you want a shot at one. Either way, spend the morning there; it outclasses a formal diplomatic tour for pure “did that just happen” value. Afternoon: the free Reformation Wall in Parc des Bastions, then Bains des Paquis for a lakeside swim and the CHF 27 fondue, genuinely better value than the CHF 40 versions on the tourist-facing lakefront. If you locked in a UN Palais des Nations slot months back (passport required at the gate, no substitutes accepted), swap it in here instead.
Day 3: Lausanne
Trains leave Cornavin for Lausanne every 15-20 minutes and take 35-45 minutes, no advance seat needed. Lausanne sits stacked up a hillside above its own piece of the lake and feels younger and steeper than Geneva. The Olympic Museum on the waterfront runs about CHF 20 full price, CHF 14 reduced, and earns its reputation, tracing the Games from 1896 to now with enough hands-on exhibits to fill two hours. The Olympic Park gardens outside are free and worth a slow lap before lunch up the hill near Place de la Palud, then an afternoon train back to Geneva for dinner.
Day 4: Montreux and Chillon Castle
This is the day that makes the four-day version worth building around. Take the train from Cornavin to Montreux, about an hour, and you land on the postcard stretch of Lake Geneva, palm trees and all, backed by steep vineyard terraces. From Montreux it’s a short walk, bus, or a genuinely lovely CGN lake boat ride (10-20 minutes by water) to Chillon Castle , the moated medieval fortress that inspired Byron. Full admission is about CHF 15 and covers all 46 numbered points of the castle, three courtyards, and the underground dungeons; Swiss Travel Pass holders get in free if you’re carrying one for a longer trip.
Do the boat out and the train back, or reverse it. Either way you get a lake crossing under a mountain skyline that Geneva itself, sitting flatter at the western tip of the lake, simply doesn’t offer.
The practical layer
Every registered Geneva hotel or hostel issues the free Transport Card automatically, covering city transit, Leman Express regional trains, and the Mouettes boats for your whole stay, though the Montreux leg runs on standard SBB rail rather than the card. Don’t bother with a rental car; between the card, Swiss punctuality, and the CGN boats, you don’t need one anywhere on this route.
Geneva speaks French, runs among the most expensive food and lodging prices in Europe, and its kitchens close between lunch and dinner service, so book your CERN slot and your Montreux train times before anything else and build meals around noon to 2pm and 7 to 9:30pm.