One of your first stops should be Tourist Office in Gruyeres. Here, you'll be able to orient yourself and get some great ideas before you start exploring.
Situated in Gruyeres, this tourist information center is well worth a visit. But you'll find loads more to discover in the area. Maison Cailler Swiss Chocolate Factory, Castle of Gruyeres, and Musée HR Giger are within close reach of Tourist Office in Gruyeres.