The city's grand square and golden-mosaic basilica; book a timed entry to skip the queue.
Palace rooms, armour and the walk across the Bridge of Sighs into the old prison cells, which older kids love.
A public waterbus journey can become part of the day’s exploration. Look for how the city faces the water, while remembering that this is working transport rather than a reserved sightseeing cruise.
A short gondola ride through the quieter back canals; agree the price before you step in.
Busy bridge with canal views, and a morning fish and fruit market next to it.
A lift (no stairs) to the top of the bell tower for the best view over the lagoon.
Fossils and natural-history collections offer an indoor change from Venice’s palaces and churches. Choose a few objects to investigate together rather than reading every label.
Take the boat to Murano to watch a glass-blowing demonstration, then visit the Glass Museum.
Rainbow-painted houses and quiet canals, a calmer half day by boat from the city.
Sandy Adriatic beach a short boat ride away; a real break from sightseeing on hot days.