Act as a travel planner specialized in families with young children. I'm traveling to destination between dates, we are number of adults adults and number children aged ages. Total budget: amount. Preferences: beach/city/nature/etc. Constraints: dietary, mobility, sleep, etc. Build a day-by-day itinerary considering: 1) Kid-friendly pace (max 1 intense attraction per half-day, nap breaks). 2) Logistical proximity between same-day activities (avoid long transfers). 3) Rainy-day or low-energy alternatives. 4) Family-friendly restaurants near attractions. 5) Free or low-cost attractions interleaved with paid ones. Output format: table with Day | Morning | Lunch | Afternoon | Dinner | Estimated cost | Practical tip. End with a "Daily survival kit" section (what to carry in the backpack) and 3 golden rules for traveling with kids to this destination.