We spent 2 full days exploring Paris city. Having a good integrated metro system, we toured around the city by foot & by train. The toughest part was when we had to carry the double stroller up & down the stairs to the Metro. We stayed within walking distance to Sacre-Coeur. We shopped for souvenirs at nearby Rue de Steinkerque, and could catch a Metro anywhere along the nearby Boulevard de Rochechouart. There are also plenty of halal restaurants around the area convenient for us to catch a meal.
We arrived in Paris early in the morning. Upon resting & settling in our apartment for a few hours, we then kicked off our journey to explore the city of Paris.