I would suggest having a wander around Vieux Lyon, then climbing the steps up to Fourvière, where you can not only visit the beautiful basilica but also have a fabulous view over the city.
about 6 years ago
They have a great (and free!) zoo in the Parc de la Tête d'Or. We hired bikes from Lyon city and cycled along the Rhone, through the zoo and around the rest of the park. A great half day activity.
10 months ago