The Opinicon has twenty-three cottages, ranging in size from one- to five-bedrooms, accommodating two to ten. All have refrigerators and are provided with daily maid service. Most are nestled in a grove set back from the shoreline, well spaced for privacy and quiet sleep. All have one or two bathrooms, TV, electric heat, smoke detectors, carpeted, and partial A/C.   Many have fireplaces, wood supplied.