Cannes is a real time commitment — fit it in only if it's a priority.
Allow Half to full day.
Strut the Croisette past palatial hotels and designer flagships, see the red-carpet Palais des Festivals, then escape uphill to the genuinely charming old quarter of Le Suquet for the view. The honest read: outside festival season it can feel like an expensive shopping strip, and the famous beaches are mostly carved into paid private clubs.