On a budget, weigh it — Coastal Boat Tour isn't cheap for what it is.
€20–35 (cruise); private charters far more
Seeing the Riviera from the water reframes it — clifftop villas, the deep Villefranche bay, swim stops on longer trips, and the best angle on Nice itself. The honest catch: short hop-on cruises can feel rushed and commentary-light, and any boat is weather-dependent and pricey for the time on the water.