National Museum of Scotland
The easiest free Edinburgh indoor day if you want real substance without committing to tickets. Start with the family galleries, then stretch into natural history, science, or lunch if the weather stays grim.
Free museum entry
Best for: Mixed ages, toddlers who need variety, and any wet-day plan where value matters.
Rainy-day fit: The strongest rainy-day fallback because it is fully indoors, central, and easy to shorten or extend.
Worth knowing: Packed lunches are allowed in the Lunch Space, and the Tower Entrance is the calmer step-free arrival.