Before camp begins, decorate your classroom in a Paris theme. Use dark construction paper and stars. You can hang stars from the ceiling with string or use a poster of Te Tour Eiffel on one of the walls. You can get as detailed as you would like with decorating for this project.
For the vocabulary, you could have one night be themed for a French dinner, one for home activities, one for touring a French market, etc. depending upon the ages of the students. Make it an elegant affair, and the students are sure to remember it for some time to come. Students will learn about Paris, one of the main cultural centers for France.