A bible camp for kids on one side of the beach and a retreat center on the other. 15 cabins complete with private baths and room for 4 people to sleep in each one is what you will find on the adult side of the camp. Just rent the space for sleeping or include meals in with your stay from the main lodge. In the summer you can paddle board, kayak, swim in the water of Lake Andrew, or just lay out in the sun down at the beach. Rates vary depending on what all your needs are, but expect them to be fairly reasonable.
Note that the rooms closest to the woods tend to have a high musty smell and if you are sensitive to such thing a request a room in a sunnier spot with more airflow!