Lac du Bois is a total immersion program, and (with exceptions for emergencies) counselors and staff communicate exclusively in French. Lac du Bois is appropriate for villagers of all language proficiency levels. Beginners find that the French spoken is easy to understand thanks in part to the use of gestures, skits, and modeling. Fluent speakers engage with more complex topics (global issues, cultures, the environment, etc.), which offer a chance to practice rare vocabulary and higher-level conversations. Villagers are in mixed-level groups for much of the day and are in level-specific groups for 2–3 hours per day.