French Summer in France.

Late May through June and again in September are the sweet spot — temperatures across the country sit at 22–28°C, the Riviera and Provence are warm but not blistering, and rates run 25–40% below the late-July to mid-August peak when most of France itself is on holiday. If you can only travel in August, head north (Brittany, Normandy, Alsace) where the weather and the crowds are kinder.

The SNCF TGV is the answer for virtually every long-distance journey — Paris–Lyon (2h), Paris–Marseille (3h), Paris–Bordeaux (2h 05m), Paris–Strasbourg (1h 50m). Per passenger, a TGV emits roughly 95% less CO₂ than the equivalent short-haul flight (the lowest in Europe, thanks to the nuclear grid). The 2023 ban on domestic flights with a sub-2.5-hour rail alternative made the math even easier.

No. Booking through IMPT costs the same as booking direct — the carbon removal is paid from IMPT's commission, not added to your bill. French hotel rates spike around the Cannes Film Festival (mid-May), Tour de France finish week, the Riviera in August, and Paris during Fashion Week and the Roland-Garros tournament — that's pure supply-and-demand, not an eco-premium.

Paris + one TGV-linked second city is the classic combination — Paris for four or five nights, then either Lyon for food, Bordeaux for wine, or Nice/Marseille for sun. Avoid trying to combine the Riviera and the Atlantic coast in the same week — the country is larger than it looks and you'll lose a day in transit.

Every reservation triggers a verified one-tonne CO₂ removal — UN-certified, paid from our commission. The offset is sourced from a portfolio of reforestation and renewable-energy projects in the Mediterranean basin, the Atlantic and East Africa, and is enough to fully balance a typical short-haul flight to Paris or Nice plus a 4-night stay. See how we carbon-balance every stay.

Yes — the Intercités de Nuit network was relaunched in 2021 and now runs Paris–Nice, Paris–Briançon and Paris–Toulouse overnight in couchette or seated coaches. The Nice train leaves Paris-Austerlitz around 20:50 and arrives 09:00. It's slower than the TGV but you sleep through it, skip a hotel night, and emit even less carbon per passenger than the daytime high-speed service.