One day in Toulon is enough to see the city’s main contrasts: a working Mediterranean harbour, Provençal streets, mountain views and beaches. The key is keeping the route simple.
Morning: market and Old Town
Start around Cours Lafayette while the market is active. Browse the stalls, stop for coffee and then wander into the narrow streets of the Old Town. Do not worry about following a rigid route; central Toulon is better when you allow yourself to get slightly distracted.
Late morning: the harbour
Walk towards the waterfront and spend some time around the port. If maritime history interests you, add the National Maritime Museum. Otherwise, simply enjoy the harbour before lunch.
Afternoon: Mont Faron
If the weather and cable car operations cooperate, head up Mont Faron. The view explains Toulon’s geography better than any map. Give yourself time at the top rather than immediately riding back down.
Evening: Mourillon
Finish at the Mourillon beaches. In warm weather you can swim; at other times, walk along the coast and stay for dinner nearby.
This itinerary deliberately leaves out several worthwhile attractions. That is better than spending your only day racing between them. If Toulon surprises you enough that you want another day for boat trips, Cap Brun or nearby coastal towns, consider that a successful visit.