This is a walk through deep time on a short stretch of riverbank: a Roman gateway with a church inside it, a quarter that has held the same community since antiquity, and the oldest bridge in the city carrying you out to an island in the Tiber. Under three kilometres, best in the late afternoon when the light comes off the water.
Start at the Portico d'Ottavia, where Roman columns, a medieval church and a vanished fishmarket stack on one spot, then walk the spine of Via del Portico d'Ottavia past the kosher forni — buy a wedge of pizza ebraica, the dense fruit-and-nut slab, and eat it as you go. The Great Synagogue's square dome, built in 1904, rose a generation after the ghetto was abolished.
Detour for the Fontana delle Tartarughe — four boys, four turtles, the most perfect small fountain in Rome — then cross Ponte Fabricio, in use since 62 BC, to Isola Tiberina. Walk to the prow where the weir breaks white, the river splitting around you. The tram back picks up across the water in Trastevere.
