Day 1 — Paris: gentle acclimatization + an evening by the Seine
✈️ Arrival, check-in, and a calm walk along the Seine embankments. Set a “family pace”: snack, water, 1–2 short goals. To warm up—playgrounds in the Tuileries or on the Champ de Mars, a gentle carousel, hot chocolate. In the evening—an early dinner and sleep: tomorrow is packed with science!