Why April
Peak summer. Near-perfect weather; expect company at the headline sights.
Weather 85 Crowds 65 Peak summer
VisaVisa required for Indians; visa-free 14 days if holding valid US/UK/Schengen/AU/JP visa.
12-month outlook
Hansa packed sunglasses. Every stop in your plan gets a Google Places match and a working map link before you see it.