This tour will take you to the Hôtel de Sens, Fortifications from the Middle Ages, Hôtel de Beauvais, Houses from the Middle Ages, Saint-Paul Saint-Louis Church, Hotel de Sully, Place des Vosges, Shopping district, Jewish district, Musée Carnavalet, Rue des Rosiers, Hôtel d'Hérouet, Archives Nationales.
If you're in the mood for a sit-down meal, I recommend the Auberge Nicolas Flamel on 51 rue de Montmorency. It is only open a dinner time and it is best to make a reservation +33 1 85 52 05 02. This restaurant is pretty close to where our tour ends.
For a lovely meal near to where you started this tour, I recommend Aux Vins des Pyrénées on 25 rue Beautreillis. This restaurant is open at both lunch and dinner and you usually don't need a reservation.
Any time of day is good, but I recommend you take this tour during business hours so you can stop and try some of the restaurants and pastry shops I'll point out along the way!
Make sure you take an extra battery pack with you, you don't want to run out of juice in the middle of the tour!